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A195026 as a simple table

n a(n)
0 0
1 21
2 70
3 147
4 252
5 385
6 546
7 735
8 952
9 1197
10 1470
11 1771
12 2100
13 2457
14 2842
15 3255
16 3696
17 4165
18 4662
19 5187
20 5740
21 6321
22 6930
23 7567
24 8232
25 8925
26 9646
27 10395
28 11172
29 11977
30 12810
31 13671
32 14560
33 15477
34 16422
35 17395
36 18396
37 19425
38 20482
39 21567
40 22680
41 23821
42 24990

[0,21,70,147,252,385,546,735,952,1197,1470,1771,
 2100,2457,2842,3255,3696,4165,4662,5187,5740,6321,
 6930,7567,8232,8925,9646,10395,11172,11977,12810,
 13671,14560,15477,16422,17395,18396,19425,20482,
 21567,22680,23821,24990]

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Last modified August 2 06:52 EDT 2021. Contains 346411 sequences. (Running on oeis4.)