790321

Appears in sequences

• Numbers k that divide 8^k - 1.at n=16A014949
• Squares not divisible by 10 with digits d_1, d_2, ... d_k such that d_1^2 + ... + d_k^2 is a square.at n=28A254959
• Squares that remain squares if you decrease them by 7 times a repunit with the same number of digits.at n=4A273233
• Discriminants with exactly 2 associated cyclic cubic fields.at n=32A343002
• Discriminants with at least 2 associated cyclic cubic fields.at n=33A343024
• Perfect powers k such that A052409(k) is equal to A052409(A366275(k)).at n=31A366278