# A019191 (b-file synthesized from sequence entry) 3 0 4 0 5 4 6 6 7 4 8 16 9 60 10 88 11 228 12 646 13 1478 14 3378 15 9204 16 23076 17 56962 18 147596 19 386464 20 997460 21 2604046 22 6887292 23 18184174 24 48134500 25 128142898 26 341816941 27 912850576 28 2444465346 29 6558718548 30 17620876747 31 47420177380