39290

Appears in sequences

• Numbers n such that sigma(n)=2n-phi(phi(n)).at n=23A110073
• Convolution of A000081 and A027852, shifted by 3 leading zeros.at n=11A280788
• a(n) is the smallest positive integer which can be represented as the sum of distinct nonzero dodecahedral numbers in exactly n ways, or -1 if no such integer exists.at n=12A360216