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A066186 as a simple table

n a(n)
0 0
1 1
2 4
3 9
4 20
5 35
6 66
7 105
8 176
9 270
10 420
11 616
12 924
13 1313
14 1890
15 2640
16 3696
17 5049
18 6930
19 9310
20 12540
21 16632
22 22044
23 28865
24 37800
25 48950
26 63336
27 81270
28 104104
29 132385
30 168120
31 212102
32 267168
33 334719
34 418540
35 520905
36 647172
37 800569
38 988570
39 1216215
40 1493520

[0,1,4,9,20,35,66,105,176,270,420,616,924,1313,
 1890,2640,3696,5049,6930,9310,12540,16632,22044,
 28865,37800,48950,63336,81270,104104,132385,
 168120,212102,267168,334719,418540,520905,647172,
 800569,988570,1216215,1493520]

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)