Permanent of the n-th principal submatrix of A204257.
A204258
Permanent of the n-th principal submatrix of A204257.
Terms
- a(0) =1a(1) =1a(2) =7a(3) =54a(4) =346a(5) =3732a(6) =50928a(7) =636288a(8) =10421856a(9) =204446592a(10) =3783985632a(11) =84204904320
External references
- oeis: A204258