Degree of denominator of GF for number of ways to place k nonattacking queens on an n X n toroidal board.

A178720

Degree of denominator of GF for number of ways to place k nonattacking queens on an n X n toroidal board.

Terms

    a(0) =3a(1) =8a(2) =12a(3) =28a(4) =58a(5) =142a(6) =350a(7) =906a(8) =2320a(9) =6056a(10) =15778a(11) =41024a(12) =107132a(13) =280184a(14) =732998a(15) =1918354a(16) =5019810a(17) =13141378a(18) =34398686a(19) =90045424a(20) =235729374a(21) =617126438a(22) =1615633560a(23) =4229774958a(24) =11073514332a(25) =28990794770a(26) =75898640094a(27) =198704554772

External references