# A294424 (b-file synthesized from sequence entry) 0 1 1 3 2 5 3 9 4 14 5 23 6 38 7 61 8 99 9 160 10 260 11 420 12 680 13 1100 14 1780 15 2880 16 4660 17 7540 18 12201 19 19741 20 31942 21 51683 22 83625 23 135308 24 218933 25 354241 26 573174 27 927415 28 1500589 29 2428004 30 3928593 31 6356597 32 10285191 33 16641788 34 26926979 35 43568767 36 70495746 37 114064513