39942

Appears in sequences

• Numbers k such that phi(k)+sigma(k) is a perfect cube.at n=27A061366
• E.g.f. A(x) satisfies: A'(x) = 1 + A(A(A(x))).at n=6A193098
• Number of permutations of [n] cyclically avoiding the consecutive step pattern UDU (U=up, D=down).at n=9A232899
• Number T(n,k) of permutations of [n] with exactly k (possibly overlapping, cyclic wrap-around) occurrences of the consecutive step pattern UDU (U=up, D=down); triangle T(n,k), n>=0, 0<=k<=floor(n/2), read by rows.at n=25A232933
• Sum of the odd parts in the partitions of n into 7 parts.at n=38A309624
• Numbers that are the sum of four third powers in exactly seven ways.at n=36A345151