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A019495 as a simple table

n a(n)
0 4
1 11
2 30
3 81
4 218
5 586
6 1575
7 4233
8 11376
9 30572
10 82159
11 220793
12 593356
13 1594576
14 4285239
15 11516085
16 30948148
17 83169572
18 223508615
19 600653577
20 1614187084
21 4337941272
22 11657715927
23 31328764525
24 84192434676
25 226257439900
26 608040726071
27 1634039193249

[4,11,30,81,218,586,1575,4233,11376,30572,82159,
 220793,593356,1594576,4285239,11516085,30948148,
 83169572,223508615,600653577,1614187084,
 4337941272,11657715927,31328764525,84192434676,
 226257439900,608040726071,1634039193249]

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)