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A009965 as a simple table

n a(n)
0 1
1 21
2 441
3 9261
4 194481
5 4084101
6 85766121
7 1801088541
8 37822859361
9 794280046581
10 16679880978201
11 350277500542221
12 7355827511386641
13 154472377739119461
14 3243919932521508681
15 68122318582951682301
16 1430568690241985328321
17 30041942495081691894741
18 630880792396715529789561
19 13248496640331026125580781
20 278218429446951548637196401

[1,21,441,9261,194481,4084101,85766121,1801088541,
 37822859361,794280046581,16679880978201,
 350277500542221,7355827511386641,
 154472377739119461,3243919932521508681,
 68122318582951682301,1430568690241985328321,
 30041942495081691894741,630880792396715529789561,
 13248496640331026125580781,
 278218429446951548637196401]

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Last modified March 28 04:13 EDT 2024. Contains 371235 sequences. (Running on oeis4.)