1088430

Appears in sequences

• Binomial coefficients C(n,69).at n=4A017733
• Binomial coefficients C(73,n).at n=4A017789
• Number of orbits of the wreath product of S_n with S_n on n X n matrices over {0,1,2,3,4}.at n=4A099123
• a(1) = 2; for n >= 2, a(n) = f(a(n-1)) where f(n) = n*(n+1)*(n+2)*(n+3)/24.at n=3A100009
• Doubly pentagonal numbers: a(n) = n*(3*n-2)*(3*n-1)*(3*n+1)/8.at n=24A232713
• Number of intersections of diagonals in the interior of a regular p-gon where p is the n-th prime.at n=20A262248
• Array read by antidiagonals: A(n,k) is the number of n element multisets of n element multisets of a k-set.at n=49A331436