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Circular knotworks II: combining pattern No. 295 with Turk's heads

In Easter Ross in Scotland there are a number of cross-slabs with various carvings of knotworks. There is a specific circular knotwork on two of the stones originally found there, the Hilton of Cadboll and the Nigg stone. Both stones show recurring loops, referred to as pattern No. 295 by Allen and Anderson. In a previous paper, we developed a fully functional model of circular knotworks that can be created with pattern No. 295, referred to as C295. That model used the concepts of loops, layers and components to describe the structure of the knotwork. However, when dealing with these knotworks in practice it is evident that many parameter combinations are unsuitable for tying into a mat made out of rope. In some cases the structure could be too dense or not dense enough. In this paper, we extend our model by interposing layers of what can be seen as Turk's head knots between layers in a C295 design. We derive equations to calculate the number of strands in these extended knotworks.