OFFSET
0,1
COMMENTS
If one uses the "table" view of array A062190, the sequence appears as the fourth column right from the middle in the "formatted as a triangular array" subpanel.
LINKS
Andrew Howroyd, Table of n, a(n) for n = 0..200
FORMULA
a(n) = A062190(4+2*n, 4+n).
EXAMPLE
a(0) = C(4+2*n,n)*C(9+2*n,4+n) = C(4,0)*C(9,4) = 1*126 = 126.
a(7) = C(4+2*7,7)*C(9+2*7,4+7) = C(18,7)*C(23,11) = 31824*1352078 = 43028530272.
PROG
(PARI) a(n)={binomial(4+2*n, n) * binomial(9+2*n, 4+n)} \\ Andrew Howroyd, Jan 07 2020
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Zerinvary Lajos, Feb 02 2006
EXTENSIONS
Rephrased definition. - R. J. Mathar, Nov 28 2008
Edited and more terms added by Andrew Howroyd, Jan 07 2020
STATUS
approved