# A084288 (b-file synthesized from sequence entry) 1 1 2 5 3 15 4 34 5 68 6 126 7 222 8 358 9 609 10 982 11 1722 12 2932 13 5317 14 9612 15 18539 16 34949 17 68876 18 134632 19 267329 20 528921 21 1057402 22 2103882 23 4207541 24 8398104 25 16799430 26 33566249 27 67148298 28 134231998 29 268500559 30 536897299 31 1073860323 32 2147505848