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A055691 as a simple table

n a(n)
1 2
2 6
3 14
4 66
5 186
6 378
7 546
8 1190
9 1470
10 2406
11 4470
12 5250
13 7086
14 18578
15 20166
16 25806
17 42602
18 58590
19 69006
20 85566
21 134946
22 137346
23 170586
24 187838
25 206646
26 262146
27 272610
28 285390
29 289394
30 420210
31 500570
32 538734
33 592410
34 595686
35 602250
36 618450

[2,6,14,66,186,378,546,1190,1470,2406,4470,5250,
 7086,18578,20166,25806,42602,58590,69006,85566,
 134946,137346,170586,187838,206646,262146,272610,
 285390,289394,420210,500570,538734,592410,595686,
 602250,618450]

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Last modified May 3 09:32 EDT 2024. Contains 372207 sequences. (Running on oeis4.)