



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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OFFSET

1,17


COMMENTS

a(n) is 1/6 of the difference between the number of Ytoothpicks added at nth stage in the structure of A160120 and the number of Ytoothpicks added at nth stage stage in the structure of A266532 (the outward version of A160120).


LINKS



EXAMPLE

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...


CROSSREFS



KEYWORD

nonn,tabf,more


AUTHOR



STATUS

approved



