# A150052 (b-file synthesized from sequence entry)
0 1
1 2
2 6
3 18
4 62
5 207
6 752
7 2640
8 9851
9 35585
10 134948
11 496518
12 1902953
13 7091719
14 27380535
15 103001513
16 399825496
17 1514917496
18 5904531754
19 22498898512
20 87970348703
21 336742579350
22 1319994431360
23 5071911065900
24 19922270101843
25 76791302296540
26 302146083406095
27 1167774135013817
28 4601313064976307