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A303609 as a simple table

n a(n)
0 0
1 20
2 70
3 162
4 308
5 520
6 810
7 1190
8 1672
9 2268
10 2990
11 3850
12 4860
13 6032
14 7378
15 8910
16 10640
17 12580
18 14742
19 17138
20 19780
21 22680
22 25850
23 29302
24 33048
25 37100
26 41470
27 46170
28 51212
29 56608
30 62370
31 68510
32 75040
33 81972
34 89318
35 97090
36 105300
37 113960
38 123082
39 132678
40 142760

[0,20,70,162,308,520,810,1190,1672,2268,2990,3850,
 4860,6032,7378,8910,10640,12580,14742,17138,19780,
 22680,25850,29302,33048,37100,41470,46170,51212,
 56608,62370,68510,75040,81972,89318,97090,105300,
 113960,123082,132678,142760]

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Last modified March 28 11:59 EDT 2024. Contains 371254 sequences. (Running on oeis4.)