21338

Appears in sequences

• Number of partitions in parts not of the form 23k, 23k+1 or 23k-1. Also number of partitions with no part of size 1 and differences between parts at distance 10 are greater than 1.at n=47A035989
• Engel expansion of Sum_{k>=0} 1/(3 + k)^k.at n=15A063186
• Numbers k such that [prime(k), prime(k+1), prime(k+2)] = [1, 2, 3] mod 11.at n=29A302767
• Number of ways to split a strict integer partition of n into consecutive subsequences with weakly decreasing sums.at n=43A319794
• a(n) = coefficient of x^n in A(x) such that: 1 = Sum_{n=-oo..+oo} x^n * (A(x) - x^(5*n+4))^(n-1).at n=7A358964
• Array read by downward antidiagonals: A(n,k) = A(n-1,k+1) + Sum_{j=0..k} binomial(k+1,j)*A(n-1,j)*A(k-j,0) with A(0,k) = 1.at n=24A392058