# A375314 (b-file synthesized from sequence entry) 0 1 1 0 2 1 3 4 4 7 5 12 6 30 7 68 8 137 9 292 10 644 11 1380 12 2936 13 6324 14 13625 15 29216 16 62701 17 134784 18 289547 19 621708 20 1335378 21 2868620 22 6161329 23 13233352 24 28424456 25 61053608 26 131135696 27 281665480 28 604991601 29 1299461088 30 2791106585 31 5995016764 32 12876698159 33 27657841516