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A102129 as a simple table

n a(n)
0 1
1 4
2 15
3 66
4 277
5 1176
6 4979
7 21094
8 89353
9 378508
10 1603383
11 6792042
12 28771549
13 121878240
14 516284507
15 2187016270
16 9264349585
17 39244414612
18 166242008031
19 704212446738
20 2983091794981
21 12636579626664
22 53529410301635
23 226754220833206
24 960546293634457

[1,4,15,66,277,1176,4979,21094,89353,378508,
 1603383,6792042,28771549,121878240,516284507,
 2187016270,9264349585,39244414612,166242008031,
 704212446738,2983091794981,12636579626664,
 53529410301635,226754220833206,960546293634457]

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Last modified May 4 23:37 EDT 2024. Contains 372257 sequences. (Running on oeis4.)