OFFSET
0,5
COMMENTS
LINKS
Paul D. Hanna, Rows 0..30, as a flattened table of n, a(n) for n = 0..495
EXAMPLE
The triangle of coefficients C(n*k, k^2), n>=k, k=0..n, begins:
1;
1, 1;
1, 2, 1;
1, 3, 15, 1;
1, 4, 70, 220, 1;
1, 5, 210, 5005, 4845, 1;
1, 6, 495, 48620, 735471, 142506, 1;
1, 7, 1001, 293930, 30421755, 183579396, 5245786, 1;
1, 8, 1820, 1307504, 601080390, 40225345056, 69668534468, 231917400, 1;
1, 9, 3060, 4686825, 7307872110, 3169870830126, 96926348578605, 37387265592825, 11969016345, 1; ...
PROG
(PARI) {T(n, k)=binomial(n*k, k^2)}
for(n=0, 10, for(k=0, n, print1(T(n, k), ", ")); print(""))
CROSSREFS
Cf. A229052.
KEYWORD
nonn,tabl
AUTHOR
Paul D. Hanna, Sep 04 2013
STATUS
approved