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A183933 as a simple table

n a(n)
1 1
2 5
3 20
4 83
5 262
6 777
7 2117
8 5278
9 12353
10 27893
11 58831
12 118985
13 235504
14 443653
15 810431
16 1459822
17 2529977
18 4285656
19 7192569
20 11698167
21 18689016
22 29678739
23 45907880
24 70000817
25 106315189
26 157902365
27 231761845
28 339336920
29 487306673

[1,5,20,83,262,777,2117,5278,12353,27893,58831,
 118985,235504,443653,810431,1459822,2529977,
 4285656,7192569,11698167,18689016,29678739,
 45907880,70000817,106315189,157902365,231761845,
 339336920,487306673]

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Last modified September 26 05:07 EDT 2021. Contains 347664 sequences. (Running on oeis4.)