# A148613 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 6
4 21
5 54
6 208
7 611
8 2491
9 7948
10 33628
11 113525
12 492930
13 1733922
14 7673528
15 27851685
16 125066046
17 465304001
18 2113510279
19 8022430212
20 36778270926
21 141937911217
22 655676836686
23 2566059065958
24 11929532572720
25 47248484525875
26 220846203815072
27 883777437652486
28 4150091488919481