# A030277 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 2
5 4
6 10
7 28
8 86
9 286
10 1019
11 3857
12 15418
13 64782
14 285041
15 1309355
16 6263085
17 31127475
18 160432093
19 856039863
20 4721638083
21 26883787141
22 157812750656
23 953995201996
24 5932516347277
25 37913110456751
26 248768719522450
27 1674488577654500
28 11553041105489900