# A271428 (b-file synthesized from sequence entry) 1 3 2 6 3 24 4 42 5 48 6 86 7 102 8 138 9 182 10 302 11 438 12 506 13 926 14 1266 15 3600 16 23550 17 24122 18 42410 19 51432 20 82290