# A026643 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 4 4 8 5 13 6 26 7 46 8 92 9 166 10 332 11 610 12 1220 13 2269 14 4538 15 8518 16 17036 17 32206 18 64412 19 122464 20 244928 21 467842 22 935684 23 1794196 24 3588392 25 6903352 26 13806704 27 26635774 28 53271548 29 103020253 30 206040506 31 399300166 32 798600332