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A051257 as a simple table

n a(n)
0 1
1 3
2 11
3 43
4 231
5 1337
6 9739
7 76209
8 706109
9 6914977
10 78150249
11 920172983
12 12216376453
13 168531536319
14 2571960399839
15 40581616143967
16 701349512411763
17 12460393480873445
18 240094506439569631
19 4749510978132662277

[1,3,11,43,231,1337,9739,76209,706109,6914977,
 78150249,920172983,12216376453,168531536319,
 2571960399839,40581616143967,701349512411763,
 12460393480873445,240094506439569631,
 4749510978132662277]

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Last modified April 19 18:05 EDT 2024. Contains 371798 sequences. (Running on oeis4.)