# A331042 (b-file synthesized from sequence entry) 1 0 2 0 3 3 4 7 5 12 6 15 7 32 8 35 9 55 10 63 11 95 12 119 13 135 14 224 15 231 16 255 17 320 18 351 19 455 20 495 21 855 22 864 23 896 24 1071 25 1440