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A128681 as a simple table

n a(n)
1 1
2 3
3 9
4 57
5 171
6 1467
7 13131
8 27873
9 32547
10 97641
11 249489
12 261633
13 784899
14 1218897
15 1255347
16 2140353
17 4971027
18 8246019
19 9961491
20 12914001
21 14913081
22 15915483
23 23159043
24 23851593
25 24738057
26 29884473
27 40666707
28 83512353
29 127938537

[1,3,9,57,171,1467,13131,27873,32547,97641,249489,
 261633,784899,1218897,1255347,2140353,4971027,
 8246019,9961491,12914001,14913081,15915483,
 23159043,23851593,24738057,29884473,40666707,
 83512353,127938537]

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Last modified August 24 17:11 EDT 2024. Contains 375417 sequences. (Running on oeis4.)