# A135473 (b-file synthesized from sequence entry) 1 0 2 0 3 1 4 3 5 8 6 21 7 54 8 138 9 355 10 924 11 2432 12 6461 13 17301 14 46657 15 126656 16 345972 17 950611 18 2626253 19 7292268 20 20342805 21 56993909 22 160317859 23 452642235 24 1282466920 25 3645564511 26 10395117584 27 29727982740 28 85251828792 29 245120276345 30 706529708510 31 2041260301955 32 5910531770835 33 17149854645474 34 49859456251401 35 145223624492108 36 423722038708874 37 1238318400527185