1663740
domain: N
Appears in sequences
- Binomial coefficients C(n,77).at n=4A017741
- Binomial coefficients C(81,n).at n=4A017797
- a(n) = C(3^n,n).at n=4A136393
- Triangle, read by rows, where T(n,k) = C(n,k) * C(2^k*3^(n-k), n) for n>=k>=0.at n=10A136635
- Number of ways to choose four points in an n X n grid (or geoplane).at n=8A189345
- Number of unoriented colorings of the 8 cubic facets of a tesseract or of the 8 vertices of a hyperoctahedron.at n=11A337957