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A048022 as a simple table

n a(n)
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 20
9 35
10 56
11 168
12 252
13 360
14 930
15 1452
16 2244
17 6820
18 11440
19 18655
20 52507
21 86905
22 139960
23 372120
24 617610
25 1007216
26 2702252
27 4563344
28 7573970
29 20167170
30 34220634
31 57059772
32 149465844
33 254222289
34 425926604

[0,0,0,0,0,0,0,20,35,56,168,252,360,930,1452,2244,
 6820,11440,18655,52507,86905,139960,372120,617610,
 1007216,2702252,4563344,7573970,20167170,34220634,
 57059772,149465844,254222289,425926604]

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Last modified January 19 04:49 EST 2021. Contains 340263 sequences. (Running on oeis4.)