# A055622 (b-file synthesized from sequence entry) 1 1 2 3 3 7 4 19 5 43 6 99 7 235 8 535 9 1239 10 2879 11 6619 12 15323 13 35451 14 81823 15 189263 16 437543 17 1011059 18 2337731 19 5403987 20 12491223 21 28877687 22 66755519 23 154315883 24 356738411 25 824668747 26 1906384015 27 4407016991 28 10187707927 29 23550975203