# A020094 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 1 4 1 5 3 6 13 7 74 8 519 9 4193 10 38084 11 384011 12 4256113 13 51428024 14 672849974 15 9475970455 16 142929221024 17 2298778304797 18 39270796040273 19 710146895061598 20 13551969914092153 21 272168729108017393 22 5738224038694033365