# A090598 (b-file synthesized from sequence entry) 1 1 2 14 3 328 4 10800 5 458880 6 23911680 7 1477278720 8 105623562240 9 8582728089600 10 781478859571200 11 78834419151667200 12 8729454895025356800 13 1052840115930503577600 14 137399767923711541248000