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A125456 as a simple table

n a(n)
0 1
1 21
2 285
3 3333
4 44589
5 609441
6 8484027
7 119207781
8 1683956109
9 23857954869
10 338563579455
11 4808766812871
12 68334330572247
13 971314874179749
14 13808436456553037
15 196319581589707923
16 2791268881281069805 

[1,21,285,3333,44589,609441,8484027,119207781,
 1683956109,23857954869,338563579455,4808766812871,
 68334330572247,971314874179749,13808436456553037,
 196319581589707923,2791268881281069805]

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Last modified May 18 00:34 EDT 2024. Contains 372608 sequences. (Running on oeis4.)