# A037623 (b-file synthesized from sequence entry) 1 2 2 18 3 165 4 1487 5 13383 6 120450 7 1084052 8 9756468 9 87808215 10 790273937 11 7112465433 12 64012188900 13 576109700102 14 5184987300918 15 46664885708265 16 419983971374387 17 3779855742369483