# A347324 (b-file synthesized from sequence entry) 0 0 1 2 2 12 3 48 4 167 5 541 6 1692 7 5187 8 15700 9 47030 10 139986 11 415385 12 1230417 13 3638657 14 10744058 15 31705658 16 93563017 17 276079102 18 814408697 19 2402076923 20 7085491321 21 20902994644 22 61668276920 23 181926014930 24 536710980085 25 1583529043750 26 4672393755494 27 13786612213841