# A088128 (b-file synthesized from sequence entry)
0 1
1 2
2 7
3 30
4 157
5 970
6 6931
7 56294
8 512569
9 5173074
10 57330271
11 692227822
12 9045871957
13 127205130650
14 1915394962027
15 30748771424310
16 524265894691441
17 9461374592096674
18 180184121539899319
19 3611206508019111614
20 75978294135602723341
21 1674381620327287502442