# A339493 (b-file synthesized from sequence entry) 1 0 2 0 3 4 4 11 5 24 6 52 7 110 8 228 9 467 10 949 11 1916 12 3848 13 7696 14 15342 15 30505 16 60527 17 119892 18 237156 19 468590 20 925032 21 1824727 22 3597289 23 7088216 24 13961168 25 27489168 26 54110618 27 106489245 28 209531251 29 412217072 30 810865812 31 1594878078 32 3136673996 33 6168522827 34 12130206941