Shifts left 2 places under "CHJ" (necklace, identity, labeled) transform.
A032335
Shifts left 2 places under "CHJ" (necklace, identity, labeled) transform.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =4a(5) =17a(6) =129a(7) =866a(8) =9075a(9) =88698a(10) =1112175a(11) =14313330a(12) =220011636a(13) =3431683284a(14) =62269608609
External references
- oeis: A032335