# A087549 (b-file synthesized from sequence entry) 1 1 2 1 3 2 4 4 5 6 6 13 7 19 8 42 9 74 10 148 11 222 12 518 13 740 14 1628 15 3108 16 6216 17 9324 18 21534 19 30858 20 72668 21 134384 22 259444 23 393828 24 928256 25 1581528 26 3163056 27 6066668 28 12392780 29 18459448 30 43245008 31 61704456 32 145031416 33 268440328 34 518421208 35 993597408