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 A257309 Perfect hyper-4 powers: a^^b, where b <> 1. 4
 0, 1, 4, 16, 27, 256, 3125, 46656, 65536, 823543, 16777216, 387420489, 10000000000, 285311670611, 7625597484987, 8916100448256, 302875106592253, 11112006825558016, 437893890380859375, 18446744073709551616, 827240261886336764177, 39346408075296537575424, 1978419655660313589123979, 104857600000000000000000000 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS a^^b is the right associative power tower a^a^...^a^a of height b. a^^-1= 0 and a^^0 = 1. We exclude b=1 because otherwise all natural numbers would be in the sequence. LINKS EXAMPLE Numbers written as power towers include: 5^^2 = 5^5 = 3125; 3^^3 = 3^3^3 = 3^27 = 7625597484987; 2^^4 = 2^2^2^2 = 2^2^4 = 2^16 = 65536; 0^^5 = 0^0^0^0^0 = 0^0^0^1 = 0^0^0 = 0^1 = 0; CROSSREFS Cf. A004231, A002488. Sequence in context: A111260 A067688 A097374 * A271936 A046358 A046366 Adjacent sequences: A257306 A257307 A257308 * A257310 A257311 A257312 KEYWORD nonn AUTHOR Natan Arie Consigli, May 07 2015 STATUS approved

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Last modified November 26 13:43 EST 2022. Contains 358362 sequences. (Running on oeis4.)
The text passage is an excerpt from the Online Encyclopedia of Integer Sequences (OEIS) describing a specific integer sequence (A257309) related to perfect hyper-4 powers. It includes a definition, examples, and references but does not contain any explicit mathematical questions or answers.
no_question
Given a text passage, determine:
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    2. If an answer to that mathematical question is provided in the text

First, describe the content structure you found in 1-2 sentences.

Then provide your analysis in the following format:
TYPE: <one of the following values>
- NO_QUESTION
- SINGLE_QUESTION
- SINGLE_QUESTION_WITH_ANSWER
- MULTIPLE_QUESTIONS
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system
The OEIS is supported by the many generous donors to the OEIS Foundation.

 Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 59th year, we have over 358,000 sequences, and we’ve crossed 10,300 citations (which often say “discovered thanks to the OEIS”). Other ways to Give
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 A257309 Perfect hyper-4 powers: a^^b, where b <> 1. 4
 0, 1, 4, 16, 27, 256, 3125, 46656, 65536, 823543, 16777216, 387420489, 10000000000, 285311670611, 7625597484987, 8916100448256, 302875106592253, 11112006825558016, 437893890380859375, 18446744073709551616, 827240261886336764177, 39346408075296537575424, 1978419655660313589123979, 104857600000000000000000000 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS a^^b is the right associative power tower a^a^...^a^a of height b. a^^-1= 0 and a^^0 = 1. We exclude b=1 because otherwise all natural numbers would be in the sequence. LINKS EXAMPLE Numbers written as power towers include: 5^^2 = 5^5 = 3125; 3^^3 = 3^3^3 = 3^27 = 7625597484987; 2^^4 = 2^2^2^2 = 2^2^4 = 2^16 = 65536; 0^^5 = 0^0^0^0^0 = 0^0^0^1 = 0^0^0 = 0^1 = 0; CROSSREFS Cf. A004231, A002488. Sequence in context: A111260 A067688 A097374 * A271936 A046358 A046366 Adjacent sequences: A257306 A257307 A257308 * A257310 A257311 A257312 KEYWORD nonn AUTHOR Natan Arie Consigli, May 07 2015 STATUS approved

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Last modified November 26 13:43 EST 2022. Contains 358362 sequences. (Running on oeis4.)
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The text passage is an excerpt from the Online Encyclopedia of Integer Sequences (OEIS) describing a specific integer sequence (A257309) related to perfect hyper-4 powers. It includes a definition, examples, and references but does not contain any explicit mathematical questions or answers.

TYPE: NO_QUESTION