Numbers n such that sigma(n) can be obtained as the base-3 carryless product of 2n and some k.
A325808
Numbers n such that sigma(n) can be obtained as the base-3 carryless product of 2n and some k.
Terms
- a(0) =1a(1) =6a(2) =28a(3) =120a(4) =259a(5) =496a(6) =8128a(7) =18990a(8) =667296a(9) =1858939a(10) =2097414a(11) =2383279a(12) =4843717a(13) =33550336a(14) =150588313a(15) =186695863a(16) =188908297
External references
- oeis: A325808