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0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 4, 0, 0, 0, 1, 0, 0, 1, 4, 0, 1, 1, 5, 2, 4, 4, 13, 2, 0, 0, 1, 0, 1, 1, 4, 0, 1, 1, 5, 2, 4, 4, 13, 2, 1, 1, 5, 2, 5, 6, 16, 5, 4, 4, 15, 8, 13, 15, 38, 10, 0, 0, 1, 0, 1
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,17
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COMMENTS
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a(n) is 1/6 of the difference between the number of Y-toothpicks added at n-th stage in the structure of A160120 and the number of Y-toothpicks added at n-th stage stage in the structure of A266532 (the outward version of A160120).
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LINKS
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EXAMPLE
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Written as an irregular triangle in which the row lengths are the terms of A011782 the sequence begins:
0;
0;
0, 0;
0, 0,0,0;
1, 0,0,0,1,0,1,1;
4, 0,0,0,1,0,0,1,4,0,1,1,5,2,4,4;
13, 2,0,0,1,0,1,1,4,0,1,1,5,2,4,4,13,2,1,1,5,2,5,6,16,5,4,4,15,8,13,15;
38,10,0,0,1,0,1...
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CROSSREFS
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KEYWORD
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nonn,tabf,more
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AUTHOR
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STATUS
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approved
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