# A062453 (b-file synthesized from sequence entry) 0 1 1 0 2 0 3 2 4 10 5 33 6 100 7 290 8 795 9 2098 10 5353 11 13270 12 32058 13 75681 14 174982 15 396969 16 885035 17 1941744 18 4197219 19 8947798 20 18829981 21 39148311 22 80467194 23 163624700 24 329349740 25 656560785 26 1296916079 27 2539570658 28 4931698805 29 9501297338