# A103733 (b-file synthesized from sequence entry) 0 1 1 191 2 853 3 7537 4 17587 5 71369 6 363749 7 574621 8 1895149 9 3744761 10 5123791 11 9167525 12 19974397 13 39789335 14 49243141 15 89502667 16 129269281 17 154098649 18 253600309 19 345942995 20 535842121 21 917491105 22 1180249901 23 1333475377