# A273009 (b-file synthesized from sequence entry) 1 0 2 2 3 4 4 6 5 12 6 18 7 24 8 42 9 84 10 300 11 390 12 780 13 822 14 2430 15 5508 16 5514 17 6492 18 12372 19 22680 20 25770 21 169416 22 174240 23 383544 24 1007838 25 1572882