Number of 8-step one space leftwards or up, two space rightwards or down asymmetric rook's tours on an n X n board summed over all starting positions.

A187303

Number of 8-step one space leftwards or up, two space rightwards or down asymmetric rook's tours on an n X n board summed over all starting positions.

Terms

    a(0) =0a(1) =0a(2) =72a(3) =2028a(4) =12778a(5) =37124a(6) =81362a(7) =145100a(8) =231552a(9) =338044a(10) =465734a(11) =613212a(12) =780752a(13) =968044a(14) =1175118a(15) =1401948a(16) =1648534a(17) =1914876a(18) =2200974a(19) =2506828a(20) =2832438a(21) =3177804a(22) =3542926a(23) =3927804a(24) =4332438a(25) =4756828a(26) =5200974a(27) =5664876a(28) =6148534a(29) =6651948

External references