# A331648 (b-file synthesized from sequence entry) 1 1 2 4 3 16 4 91 5 546 6 5094 7 47306 8 561190 9 7098943 10 103345704 11 1622632638 12 28216141886 13 526858348514 14 10659286804538 15 230286817182060 16 5319206290975993 17 130370767029136518 18 3386434807625742926 19 92801587319328412310 20 2677967917777310591454 21 81124837170900250181072