# A099604 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 4 4 7 5 12 6 23 7 40 8 72 9 131 10 233 11 420 12 756 13 1355 14 2438 15 4381 16 7868 17 14144 18 25413 19 45661 20 82058 21 147444 22 264943 23 476092 24 855483 25 1537236 26 2762296 27 4963591 28 8919173 29 16027012 30 28799164 31 51749715 32 92989886 33 167094985 34 300255720