# A006445 (b-file synthesized from sequence entry) 1 0 2 0 3 0 4 0 5 0 6 1 7 0 8 1 9 2 10 1 11 4 12 9 13 12 14 27 15 50 16 99 17 188 18 386 19 740 20 1528 21 3012 22 6192 23 12376 24 25594 25 51628 26 107135 27 218100 28 453895 29 930812 30 1943281 31 4009512 32 8394915 33 17414512