# A150112 (b-file synthesized from sequence entry) 0 1 1 2 2 6 3 19 4 70 5 262 6 1031 7 4153 8 17104 9 71585 10 303758 11 1303324 12 5645184 13 24647181 14 108364268 15 479285899 16 2131180012 17 9520717770 18 42710777994 19 192323297051 20 868946783064 21 3938096694053 22 17897424213394 23 81546179597241 24 372420902761982 25 1704519540738366 26 7816936108095650 27 35914879901405947