Number of ways to place 6 nonattacking wazirs on a 6 X n board.

Terms

a(0) =0a(1) =2a(2) =504a(3) =10010a(4) =78052a(5) =368868a(6) =1280832a(7) =3612344a(8) =8774380a(9) =19049692a(10) =37898664a(11) =70311824a(12) =123209012a(13) =205885204a(14) =330502992a(15) =512631720a(16) =771833276a(17) =1132294540a(18) =1623506488a(19) =2280989952a(20) =3147068036a(21) =4271685188a(22) =5713272928a(23) =7539662232a(24) =9829042572a(25) =12670967612