64581

Appears in sequences

• Numbers n such that n = pi(n)*k + 1 for some k.at n=32A065136
• Triangle read by rows: T(n,k) is the number of noncrossing trees with n edges in which the leftmost leaf is at level k.at n=37A101409
• Numbers n such that there exists at least one number j and pi(m) = d_1 d_2 ... d_j*d_(j+1) d_(j+2) ... d_k where d_1 d_2 ...d_k is the decimal expansion of n.at n=28A112012
• Numbers n = concat(s,t) such that n = prime(s) + prime(t).at n=1A251860
• Numbers that are the sum of seven fourth powers in exactly ten ways.at n=23A345832
• Expansion of g*(1 + x*g), where g = 1+x*g^3 is the g.f. of A001764.at n=8A391380