29034396domain: NAppears in sequencesBinomial coefficients C(n,78).at n=5A017742Binomial coefficients C(83,n).at n=5A017799Triangle, read by rows, where T(n,k) = C( C(n+2,3) - C(k+2,3) + 3, n-k) for n>=k>=0.at n=30A126457a(n) = binomial(prime(3+n), prime(3)).at n=20A126996