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A058579 as a simple table

n a(n)
-1 1
0 0
1 4
2 6
3 11
4 18
5 28
6 42
7 62
8 90
9 128
10 180
11 250
12 342
13 464
14 624
15 831
16 1098
17 1440
18 1878
19 2432
20 3132
21 4012
22 5112
23 6485
24 8190
25 10300
26 12900
27 16097
28 20016
29 24804
30 30636
31 37724
32 46314
33 56700
34 69228
35 84302
36 102402
37 124088
38 150024
39 180973
40 217836

[1,0,4,6,11,18,28,42,62,90,128,180,250,342,464,
 624,831,1098,1440,1878,2432,3132,4012,5112,6485,
 8190,10300,12900,16097,20016,24804,30636,37724,
 46314,56700,69228,84302,102402,124088,150024,
 180973,217836]

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Last modified May 1 17:43 EDT 2024. Contains 372175 sequences. (Running on oeis4.)