189544domain: NAppears in sequencesNumber of 7-step left-handed knight's tours (moves only out two, left one) on an n X n board summed over all starting positions.at n=21A187177Triangle T(n,k) read by rows giving the coefficients of the matching-generating polynomial of the n X n knight graph (0 <= k <= floor(n^2/2)).at n=26A302241