Numbers k such that the sum of the first k odd composites is palindromic in base 3.
A118129
Numbers k such that the sum of the first k odd composites is palindromic in base 3.
Terms
- a(0) =6a(1) =14a(2) =20a(3) =424a(4) =1042a(5) =8290a(6) =20802a(7) =21644a(8) =440512a(9) =548008a(10) =749171a(11) =4366390a(12) =5378548a(13) =9850174a(14) =17930596a(15) =36158854a(16) =130427194a(17) =407305710a(18) =3077094752a(19) =93416875260
External references
- oeis: A118129