# A055553 (b-file synthesized from sequence entry) 1 0 2 0 3 1 4 7 5 16 6 43 7 105 8 255 9 646 10 1547 11 3605 12 8241 13 19279 14 44706 15 105212 16 246683 17 585355 18 1401644 19 3381806 20 8220777 21 20138200 22 49679870