# A148882 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 8
4 30
5 97
6 377
7 1371
8 5629
9 21821
10 91723
11 370448
12 1590614
13 6610572
14 28808574
15 122283013
16 539341238
17 2326254276
18 10357685562
19 45242780800
20 203008539599
21 895866873466
22 4045650433086
23 18004733886152
24 81746353342155
25 366389377051723
26 1671148718301495
27 7535350327876314
28 34505732112730067