# A227233 (b-file synthesized from sequence entry) 0 1 1 1 2 3 3 5 4 9 5 16 6 29 7 52 8 92 9 163 10 287 11 507 12 893 13 1573 14 2772 15 4884 16 8605 17 15159 18 26705 19 47045 20 82878 21 146003 22 257207 23 453112 24 798230 25 1406210 26 2477265 27 4364097 28 7688055 29 13543737 30 23859456 31 42032242 32 74046506 33 130444746 34 229799252 35 404828081 36 713169314 37 1256361635 38 2213281654