OFFSET
1,3
COMMENTS
REFERENCES
Chunwei Song, The Generalized Schroeder Theory, El. J. Combin. 12 (2005) #R53
FORMULA
EXAMPLE
The triangle starts in row n=1 as
1;
1, 4;
1, 12, 22;
1, 24, 120, 140;
1, 40, 380, 1140, 969;
1, 60, 920, 5060, 10626, 7084;
1, 84, 1890, 16380, 61425, 98280, 53820;
1, 112, 3472, 43400, 251720, 704816, 906192, 420732;
CROSSREFS
KEYWORD
AUTHOR
R. J. Mathar, Nov 08 2010
STATUS
approved