# A005116 (b-file synthesized from sequence entry) 1 1 2 3 3 6 4 13 5 25 6 50 7 94 8 178 9 328 10 601 11 1083 12 1940 13 3436 14 6047 15 10558 16 18326 17 31614 18 54265 19 92683 20 157626 21 266985 22 450580 23 757851 24 1270757 25 2124721 26 3543318 27 5894831 28 9785243 29 16210036 30 26802756 31 44240560 32 72906608 33 119969779