Number of 7-step one or two space at a time bishop's tours on an n X n board summed over all starting positions.

A187051

Number of 7-step one or two space at a time bishop's tours on an n X n board summed over all starting positions.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =400a(4) =14024a(5) =86608a(6) =285048a(7) =668176a(8) =1272720a(9) =2110944a(10) =3180724a(11) =4475176a(12) =5989600a(13) =7722744a(14) =9674608a(15) =11845192a(16) =14234496a(17) =16842520a(18) =19669264a(19) =22714728a(20) =25978912a(21) =29461816a(22) =33163440a(23) =37083784a(24) =41222848a(25) =45580632a(26) =50157136a(27) =54952360

External references