247968

Appears in sequences

• Triangle of numbers T(n,k) = T(n-1,k-1) + ((n+k-1)/k)*T(n-1,k), n >= 1, 1 <= k <= n, with T(n,1) = n!, T(n,n) = 1; read from right to left.at n=52A059369
• Triangle T(n, k) read by rows. T(n, k) is the number of lists of k unlabeled permutations whose total length is n.at n=58A090238
• Numbers divisible by at least six of their digits, different and >1.at n=1A187534
• G.f. A(x) satisfies: [x^(n+1)] A(x)^n = n^2 * ( [x^(n-1)] A(x)^n ) for n>=1.at n=9A245312
• Three-column table read by rows: Triples that have the same value of phi, sigma, and tau.at n=21A322679
• Three-column table read by rows: Primitive distinct triples that have the same value of phi, sigma, and tau.at n=21A322689