# A019180 (b-file synthesized from sequence entry) 3 0 4 0 5 6 6 6 7 5 8 27 9 48 10 88 11 242 12 534 13 1295 14 3371 15 8005 16 20318 17 52616 18 131118 19 337153 20 878222 21 2265242 22 5912317 23 15506407 24 40583900 25 106780193 26 281722404 27 743716917 28 1970007288 29 5231872992 30 13917016645 31 37110269578