# A037728 (b-file synthesized from sequence entry) 1 2 2 18 3 165 4 1486 5 13376 6 120384 7 1083459 8 9751132 9 87760190 10 789841710 11 7108575393 12 63977178538 13 575794606844 14 5182151461596 15 46639363154367 16 419754268389304 17 3777788415503738