50967

Appears in sequences

• Number of permutations of length n which avoid the patterns 1342, 3421, 4312.at n=10A116838
• G.f.: A(x) = 1 + x*(A_2)^3; A_2 = 1 + x^2*(A_3)^3; A_3 = 1 + x^3*(A_4)^3; ... A_n = 1 + x^n*(A_{n+1})^3 for n>=1 with A_1 = A(x).at n=29A132330
• Antidiagonal sums of the convolution array A213573.at n=10A213575
• Number of numbers k such that k < d(k)^(n/10), where d(k) is the number of divisors of k.at n=20A225738
• Number of partitions p of 2n-1 such that n - (number of parts of p) is a part of p.at n=26A238641