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A148189 as a simple table

n a(n)
0 1
1 1
2 2
3 4
4 12
5 30
6 95
7 285
8 957
9 3169
10 11155
11 39558
12 144487
13 537139
14 2027543
15 7787338
16 30251332
17 119109358
18 473788518
19 1903999547
20 7721744366
21 31574203219
22 130129452868
23 540068476342
24 2256487627394
25 9485713342034
26 40104517063762
27 170472877467166
28 728251702997833
29 3125833374238363

[1,1,2,4,12,30,95,285,957,3169,11155,39558,144487,
 537139,2027543,7787338,30251332,119109358,
 473788518,1903999547,7721744366,31574203219,
 130129452868,540068476342,2256487627394,
 9485713342034,40104517063762,170472877467166,
 728251702997833,3125833374238363]

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Last modified May 28 04:54 EDT 2020. Contains 334671 sequences. (Running on oeis4.)