# A113224 (b-file synthesized from sequence entry) 0 1 1 2 2 7 3 16 4 41 5 98 6 239 7 576 8 1393 9 3362 10 8119 11 19600 12 47321 13 114242 14 275807 15 665856 16 1607521 17 3880898 18 9369319 19 22619536 20 54608393 21 131836322 22 318281039 23 768398400 24 1855077841 25 4478554082 26 10812186007 27 26102926096 28 63018038201