# A049858 (b-file synthesized from sequence entry) 0 0 1 1 2 2 3 3 4 5 5 9 6 17 7 32 8 60 9 112 10 209 11 390 12 728 13 1359 14 2537 15 4736 16 8841 17 16504 18 30809 19 57513 20 107363 21 200421 22 374138 23 698426 24 1303794 25 2433871 26 4543454 27 8481540 28 15833003 29 29556423 30 55174760 31 102998057 32 192272694 33 358927051