# A253688 (b-file synthesized from sequence entry) 1 1 2 4 3 10 4 21 5 39 6 64 7 94 8 129 9 171 10 218 11 272 12 331 13 397 14 468 15 546 16 629 17 719 18 814 19 916 20 1023 21 1137 22 1256 23 1382 24 1513 25 1651 26 1794 27 1944 28 2099 29 2261 30 2428 31 2602 32 2781 33 2967 34 3158 35 3356 36 3559 37 3769 38 3984 39 4206 40 4433 41 4667 42 4906 43 5152 44 5403 45 5661 46 5924 47 6194 48 6469 49 6751 50 7038