# A001115 (b-file synthesized from sequence entry) 0 1 1 2 2 3 3 4 4 6 5 9 6 14 7 23 8 38 9 64 10 113 11 200 12 358 13 653 14 1202 15 2223 16 4151 17 7781 18 14659 19 27721 20 52603 21 100084 22 190969 23 365134 24 699617 25 1342923 26 2582172 27 4972385 28 9588933 29 18515328 30 35794987 31 69278386 32 134224480 33 260309786 34 505302925 35 981723316 36 1908898002 37 3714597352 38 7233673969 39 14096361346 40 27487875487