# A150229 (b-file synthesized from sequence entry) 0 1 1 2 2 6 3 22 4 80 5 310 6 1252 7 5148 8 21482 9 91276 10 392896 11 1701500 12 7442013 13 32815590 14 145380566 15 647569948 16 2900243037 17 13040713888 18 58828778368 19 266395866595 20 1210193354780 21 5510852683899 22 25161291048035 23 115172327913152 24 528225223735864 25 2427259219164773 26 11175758755982136 27 51542960940788254