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A127634 as a simple table

n a(n)
1 0
2 1
3 4
4 16
5 54
6 178
7 565
8 1770
9 5493
10 16927
11 51901
12 158533
13 482802
14 1466859
15 4448104
16 13467249
17 40720970
18 122994566
19 371156622
20 1119161662
21 3372427789
22 10156591942
23 30573367574
24 91993546765
25 276703494365
26 832023918335
27 2501142914874
28 7516883840470

[0,1,4,16,54,178,565,1770,5493,16927,51901,158533,
 482802,1466859,4448104,13467249,40720970,
 122994566,371156622,1119161662,3372427789,
 10156591942,30573367574,91993546765,276703494365,
 832023918335,2501142914874,7516883840470]

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Last modified April 25 06:42 EDT 2024. Contains 371964 sequences. (Running on oeis4.)