# A213380 (b-file synthesized from sequence entry)
0 0
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 0
9 0
10 0
11 0
12 132
13 1716
14 12012
15 60060
16 240240
17 816816
18 2450448
19 6651216
20 16628040
21 38798760
22 85357272
23 178474296
24 356948592
25 686439600
26 1274816400
27 2294669520
28 4015671660
29 6850263420
30 11417105700
31 18627909300
32 29804654880
33 46835886240
34 72382733280
35 110147637600
36 165221456400
37 244527755472
38 357386719536
39 516225261552
40 737464659360