OFFSET
0,3
REFERENCES
L. Comtet, Advanced Combinatorics, Reidel, 1974, p. 170, #33.
EXAMPLE
1;
1, 3;
3, 20, 30;
15, 161, 525, 525;
105, 1584, 8232, 17640, 13230; ...
CROSSREFS
KEYWORD
AUTHOR
N. J. A. Sloane, Jan 28 2001
STATUS
approved