265608
domain: N
Appears in sequences
- Numbers n such that sigma(n) = 13*phi(n) (where sigma=A000203, phi=A000010).at n=11A171258
- Irregular triangle where row n gives the columns of A340316 whose minimum value is in row n of A340316. The lists of column indices are given in abbreviated form, using pairs (x, y) to mean the range [x..y].at n=14A358677