# A054150 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 4 4 7 5 13 6 22 7 40 8 73 9 132 10 245 11 458 12 864 13 1638 14 3123 15 5979 16 11484 17 22140 18 42773 19 82865 20 160809 21 312659 22 608857 23 1187323 24 2318344 25 4531879 26 8867913 27 17369053 28 34048772 29 66799240 30 131146379 31 257651913 32 506503984 33 996288321