Number of 10-step S, NW and NE-moving king's tours on an n X n board summed over all starting positions.

A187384

Number of 10-step S, NW and NE-moving king's tours on an n X n board summed over all starting positions.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =280a(4) =3792a(5) =17052a(6) =44464a(7) =92628a(8) =159328a(9) =245946a(10) =350386a(11) =472648a(12) =612732a(13) =770638a(14) =946366a(15) =1139916a(16) =1351288a(17) =1580482a(18) =1827498a(19) =2092336a(20) =2374996a(21) =2675478a(22) =2993782a(23) =3329908a(24) =3683856a(25) =4055626a(26) =4445218a(27) =4852632a(28) =5277868a(29) =5720926

External references