OFFSET
1,4
LINKS
A. M. Baxter, Algorithms for Permutation Statistics, Ph. D. Dissertation, Rutgers University, May 2011. See Table 4.1.
EXAMPLE
Triangle begins:
1,
1,1,2,1,1,
0,0,0,0,3,3,6,7,9,7,5,2,1,
0,0,0,0,0,0,0,0,1,1,4,6,15,18,28,35,44,47,49,42,31,18,9,3,1,
...
CROSSREFS
KEYWORD
nonn,tabf,more
AUTHOR
N. J. A. Sloane, Jun 24 2017
STATUS
approved