68526

Appears in sequences

• 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=30A132330
• a(n) = 94*n^2.at n=27A174337
• Sequence lists numbers k > 1 such that k^2 == phi(k) (mod sigma(k)), where phi = A000010 and sigma = A000203.at n=27A324214
• Numbers that are equal to the sum of their iterated infinitary analog of the totient function A384247.at n=10A385746