# A174317 (b-file synthesized from sequence entry) 0 1 1 2 2 1 3 5 4 12 5 26 6 54 7 110 8 222 9 446 10 894 11 1790 12 3582 13 7166 14 14334 15 28670 16 57342 17 114686 18 229374 19 458750 20 917502 21 1835006 22 3670014 23 7340030 24 14680062 25 29360126 26 58720254 27 117440510 28 234881022 29 469762046 30 939524094 31 1879048190 32 3758096382