# A007303 (b-file synthesized from sequence entry) 1 1 2 2 3 4 4 7 5 10 6 12 7 18 8 40 9 44 10 45 11 1850 12 11604 13 11616 14 11617 15 2132568 16 17001726 17 17001743 18 17001744 19 6660587898 20 64431061179 21 64431061180 22 64431061181 23 46611108069964