Number of 6-step king-knight's tours (piece capable of both kinds of moves) on an n X n board summed over all starting positions.

A187854

Number of 6-step king-knight's tours (piece capable of both kinds of moves) on an n X n board summed over all starting positions.

Terms

    a(0) =0a(1) =0a(2) =16032a(3) =292776a(4) =1400168a(5) =3807828a(6) =7700944a(7) =13082348a(8) =19910456a(9) =28160124a(10) =37824352a(11) =48902340a(12) =61394088a(13) =75299596a(14) =90618864a(15) =107351892a(16) =125498680a(17) =145059228a(18) =166033536a(19) =188421604a(20) =212223432a(21) =237439020a(22) =264068368a(23) =292111476

External references