# A179653 (b-file synthesized from sequence entry) 1 3 2 6 3 10 4 15 5 21 6 28 7 45 8 55 9 78 10 91 11 105 12 136 13 406 14 496 15 528 16 595 17 703 18 741 19 1035 20 1081 21 1225