OFFSET
1,7
LINKS
M. Josuat-Verges, J.-C. Novelli and J.-Y. Thibon, The algebraic combinatorics of snakes, arXiv preprint arXiv:1110.5272, 2011
EXAMPLE
Triangle begins:
0
0 0
1 1 1
3 4 5 6
47 44 40 35 29
...
CROSSREFS
KEYWORD
AUTHOR
N. J. A. Sloane, Dec 23 2011
STATUS
approved