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A008995 as a simple table

n a(n)
1 4
2 10
3 28
4 96
5 126
6 540
7 906
8 1150
9 1360
10 9586
11 15726
12 19660
13 31468
14 156006
15 360748
16 370372
17 492226
18 1349650
19 1357332
20 2010880
21 4652506
22 17051886
23 20831532
24 47326912
25 122164968
26 189695892
27 191913030

[4,10,28,96,126,540,906,1150,1360,9586,15726,
 19660,31468,156006,360748,370372,492226,1349650,
 1357332,2010880,4652506,17051886,20831532,
 47326912,122164968,189695892,191913030]

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Last modified August 8 08:27 EDT 2020. Contains 336293 sequences. (Running on oeis4.)