Number of 8-step one or two space at a time bishop's tours on an n X n board summed over all starting positions.

A187052

Number of 8-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) =80a(4) =22200a(5) =226864a(6) =961728a(7) =2625640a(8) =5543744a(9) =9907248a(10) =15787528a(11) =23174472a(12) =32030516a(13) =42322492a(14) =54034656a(15) =67163804a(16) =81709936a(17) =97673052a(18) =115053152a(19) =133850236a(20) =154064304a(21) =175695356a(22) =198743392a(23) =223208412a(24) =249090416a(25) =276389404a(26) =305105376a(27) =335238332a(28) =366788272

External references