# A146976 (b-file synthesized from sequence entry) 0 1 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 3212592 9 0 10 0 11 0 12 12593360640 13 0 14 1518742159360 15 1684323434496 16 233496616617720 17 2063296207257600 18 54280709965103104 19 1024338139923087360 20 25271993786704661248 21 603379495807494389760