# A049285 (b-file synthesized from sequence entry) 1 0 2 0 3 0 4 0 5 1 6 1 7 2 8 4 9 7 10 13 11 24 12 43 13 78 14 141 15 253 16 455 17 818 18 1468 19 2637 20 4734 21 8495 22 15247 23 27361 24 49094 25 88093 26 158063 27 283599 28 508840 29 912956 30 1638003 31 2938861 32 5272795 33 9460227 34 16973125 35 30452380 36 54636174 37 98025512 38 175872397 39 315541228 40 566127763