120062

Appears in sequences

• Numbers of the form 12*k + 2 with nonempty inverse totient set.at n=18A063668
• a(n) = (9*n+4)*(9*n+5).at n=38A177073
• Numbers n such that 2 * (1^n + 2^n + 3^n + ... + n^n) is not 0 (mod n), but 2 * (1^d + 2^d + 3^d + ... + d^d) is 0 (mod d) for each other d | n.at n=32A280187
• Number of quadrilateral regions in a "frame" of size n X n (see Comments in A331776 for definition), divided by 8.at n=40A332596
• Ulam numbers that are oblong (or promic) numbers.at n=28A379828
• Number of unlabeled 2,3 cacti (triangular cacti with bridges) with n triangles and every node contained in exactly one triangle.at n=11A380634