# A093406 (b-file synthesized from sequence entry) 1 1 2 3 3 11 4 31 5 71 6 145 7 289 8 601 9 1321 10 2979 11 6683 12 14743 13 32111 14 69697 15 151777 16 332113 17 728689 18 1598883 19 3503627 20 7668079 21 16774775 22 36704017 23 80343361 24 175916521 25 385196761 26 843365379 27 1846290395 28 4041672871 29 8847607391 30 19368919297 31 42403014721 32 92830645537