# A355040 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 5 4 13 5 35 6 96 7 266 8 742 9 2079 10 5843 11 16457 12 46423 13 131099 14 370527 15 1047858 16 2964698 17 8390837 18 23754234 19 67260645 20 190478213 21 539484321 22 1528094423 23 4328632609 24 12262352881 25 34738763766 26 98416624789 27 278825903115 28 789961599608 29 2238129694407 30 6341171821627 31 17966261019890 32 50903653156245