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A202698
The first of a set of three triangles constructed by the same rule as A202692-A202694, but where the top entries in the three triangles are 0,1,0 respectively.
4
0, 0, 0, 3, 3, 3, 0, 3, 6, 9, 147, 147, 144, 138, 129
OFFSET
1,4
LINKS
M. Josuat-Verges, J.-C. Novelli and J.-Y. Thibon, The algebraic combinatorics of snakes, arXiv preprint arXiv:1110.5272, 2011
EXAMPLE
The triangle begins:
0
0 0
3 3 3
0 3 6 9
147 147 144 138 129
...
The three triangles together:
0 1 0
0 0 0 1 1 1
3 3 3 3 3 2 2 1 0
0 3 6 9 9 12 15 17 17 19 20 20
147 147 144 138 129 129 120 108 93 76 76 59 40 20 0
CROSSREFS
The three triangles are A202698, A202699, A202700.
Sequence in context: A130719 A143606 A126660 * A320785 A164884 A357073
KEYWORD
nonn,tabl,more
AUTHOR
N. J. A. Sloane, Dec 23 2011
STATUS
approved