# A148372 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 5
4 16
5 42
6 147
7 456
8 1632
9 5436
10 20292
11 70488
12 269689
13 968663
14 3772561
15 13913269
16 54903537
17 206569753
18 824553180
19 3152717500
20 12698822581
21 49201218499
22 199719855616
23 782513292747
24 3196926705307
25 12644684394950
26 51953020255292
27 207173194254946
28 855362862003040
29 3435180546703850