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A211978 as a simple table

n a(n)
0 0
1 2
2 6
3 12
4 24
5 40
6 70
7 108
8 172
9 256
10 384
11 550
12 798
13 1112
14 1560
15 2136
16 2926
17 3930
18 5288
19 6996
20 9260
21 12104
22 15798
23 20412
24 26348
25 33702
26 43044
27 54588
28 69090
29 86906
30 109126
31 136270
32 169854
33 210732
34 260924
35 321752
36 396028
37 485624
38 594402
39 725174
40 883092
41 1072208

[0,2,6,12,24,40,70,108,172,256,384,550,798,1112,
 1560,2136,2926,3930,5288,6996,9260,12104,15798,
 20412,26348,33702,43044,54588,69090,86906,109126,
 136270,169854,210732,260924,321752,396028,485624,
 594402,725174,883092,1072208]

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Last modified September 16 04:06 EDT 2024. Contains 375959 sequences. (Running on oeis4.)