这串数的奇偶性：奇，奇，偶，奇，奇，偶，奇，奇，偶，$$\cdots \cdots $$周期为$$3$$，$$2017\div 3=762\cdots \cdots 1$$，奇数共有$$2\times 672+1=1345$$（个）． 
在斐波那契数列：$$1$$，$$1$$，$$2$$，$$3$$，$$5$$，$$8$$，$$13$$，$$21$$，$$34$$，$$55$$，$$\cdots $$中，到第$$2017$$个数止，共有个奇数． 
[1] $$1343$$ 
[2] $$1344$$ 
[3] $$1345$$ 
[4] $$1346$$ 