# A216241 (b-file synthesized from sequence entry) 0 1 1 2 2 4 3 8 4 16 5 32 6 62 7 124 8 236 9 472 10 890 11 1780 12 3340 13 6680 14 12502 15 25004 16 46732 17 93464 18 174554 19 349108 20 651740 21 1303480 22 2432918 23 4865836 24 9080956 25 18161912 26 33892954 27 67785908 28 126494956 29 252989912 30 472095062 31 944190124 32 1761901676 33 3523803352 34 6575544410 35 13151088820