# A174938 (b-file synthesized from sequence entry) 1 1 2 4 3 10 4 28 5 51 6 140 7 252 8 452 9 953 10 1164 11 2974 12 5676 13 13531 14 14828 15 40744 16 27260 17 146845 18 55372 19 288174 20 177700 21 574867 22 204916 23 3721652 24 988332 25 3550621 26 3267452 27 11129590 28 4173196 29 46286551 30 7402156 31 77215116 32 27553508 33 97906405 34 20169220 35 1259249286 36 43886132