# A065956 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 3 4 5 5 9 6 15 7 27 8 48 9 87 10 160 11 296 12 552 13 1033 14 1941 15 3663 16 6936 17 13171 18 25076 19 47854 20 91515 21 175352 22 336587 23 647132 24 1246070 25 2402691 26 4638909 27 8967212 28 17353538 29 33618333 30 65191863 31 126535914 32 245818071 33 477938270 34 929968029 35 1810857391 36 3528610690 37 6880357956