# A346558 (b-file synthesized from sequence entry) 1 1 2 4 3 9 4 20 5 35 6 78 7 133 8 280 9 531 10 1070 11 2057 12 4212 13 8203 14 16534 15 32865 16 65840 17 131087 18 262818 19 524305 20 1049740 21 2097459 22 4196390 23 8388629 24 16782024 25 33554575 26 67117102 27 134218809 28 268452212 29 536870939 30 1073777010 31 2147483677 32 4295033440 33 8589938775 34 17180000318 35 34359739085