Number of necklaces with n white beads and 10*n black beads.
A261504
Number of necklaces with n white beads and 10*n black beads.
Terms
- a(0) =1a(1) =1a(2) =11a(3) =166a(4) =3091a(5) =63251a(6) =1376738a(7) =31231278a(8) =730421043a(9) =17485161178a(10) =426342182761
External references
- oeis: A261504