67945521
domain: N
Appears in sequences
- Binomial coefficient C(7n,n-3).at n=6A004371
- Binomial coefficients C(n,57).at n=6A017721
- Binomial coefficients C(63,n).at n=6A017779
- Binomial coefficients C(2*n-5,6).at n=28A053128
- a(n) = binomial(sigma(n),tau(n)), where sigma(n) is the sum and tau(n) the number of divisors of n (A000203, A000005).at n=31A068904
- Square array, read by antidiagonals, where T(n,k) = binomial(2^k + n-1, k).at n=27A136555
- a(n) = binomial(2^n - 1, n).at n=6A136556