89493721076
domain: N
Appears in sequences
- a(n) is the number of complement pairs of primitive 2n-bead balanced binary necklaces.at n=23A383904
- a(n) is the number of complement pairs of 2n-bead balanced bicolor necklaces.at n=23A386388
- a(n) is the number of complement pairs of imprimitive (periodic) 2n-bead balanced binary necklaces.at n=46A387130