241614
domain: N
Appears in sequences
- Numbers k such that phi(k) = sigma(k+1) - sigma(k-1).at n=24A066155
- Number of base 30 circular n-digit numbers with adjacent digits differing by 3 or less.at n=6A125340
- a(n) is the smallest number which can be represented as the sum of n distinct positive cubes in exactly n ways, or 0 if no such number exists.at n=27A350270