OFFSET
1,2
COMMENTS
Row sums = A051946: (1, 11, 56, 196, 546, 1302,...).
FORMULA
EXAMPLE
First few rows of the triangle =
1;
6, 5;
21, 20, 15;
56, 55, 50, 35;
126, 125, 120, 105, 70;
252, 251, 246, 231, 196, 126;
462, 461, 456, 441, 406, 336, 210;
792, 791, 786, 771, 736, 666, 540, 330;
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, Jul 27 2008
STATUS
approved