# A237884 (b-file synthesized from sequence entry)
0 0
1 0
2 1
3 3
4 4
5 20
6 15
7 105
8 56
9 504
10 210
11 2310
12 792
13 10296
14 3003
15 45045
16 11440
17 194480
18 43758
19 831402
20 167960
21 3527160
22 646646
23 14872858
24 2496144
25 62403600
26 9657700
27 260757900
28 37442160
29 1085822640
30 145422675
31 4508102925
32 565722720
33 18668849760
34 2203961430