# A010120 (b-file synthesized from sequence entry) 0 1 1 2 2 3 3 3 4 3 5 21 6 21 7 75 8 75 9 151 10 151 11 1365 12 1365 13 5461 14 5461 15 14563 16 14563 17 87381 18 87381 19 184111 20 184111 21 932067 22 932067 23 5592405 24 5592405 25 13256071 26 13256071 27 26512143 28 26512143 29 357913941 30 357913941 31 1431655765 32 1431655765 33 3817748707