356789

Appears in sequences

• Smallest number with n = sum of distinct digits in decimal representation, cf. A217928.at n=38A227378
• a(n) is the concatenation of the numbers k, 2 <= k <= 9, such that the base-k representation of n is a palindrome; a(n) = 0 if there is no such base.at n=3A236366
• Number of vertices in an equal-armed cross with arms of length n (see Comments in A331456 for definition).at n=14A333035
• Spiral on a 2D square lattice, one term per cell, starting at the origin with 0; the four integers forming any 2 X 2 square have all digits 0 through 9 (with duplicate digits allowed).at n=7A337368