# A126904 (b-file synthesized from sequence entry) 0 1 1 24 2 264 3 1800 4 8736 5 32952 6 102744 7 276648 8 663744 9 1451736 10 2944104 11 5607624 12 10131552 13 17499768 14 29077176 15 46711656 16 72852864 17 110689176 18 164304072 19 238853256 20 340763808 21 477956664 22 660093720 23 898850856 24 1208218176 25 1604828760 26 2108317224