# A377116 (b-file synthesized from sequence entry) 0 0 1 0 2 2 3 18 4 128 5 840 6 5328 7 33264 8 206080 9 1271808 10 7833472 11 48200064 12 296423424 13 1822459392 14 11203152896 15 68863546368 16 423273267200 17 2601614180352 18 15990421856256 19 98282063536128 20 604069867552768 21 3712780777586688 22 22819757583302656 23 140256346936639488