# A213233 (b-file synthesized from sequence entry) 0 1 1 1 2 5 3 39 4 345 5 3512 6 38431 7 451620 8 5587237 9 72275004 10 968509140 11 13361356169 12 188704259571 13 2716467168169 14 39716842554828 15 588125693790055 16 8800638181341593 17 132838773216409675 18 2019626662710709088 19 30891440565153652705 20 474899505740289874276