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A027508 as a simple table

n a(n)
2 1
3 21
4 227
5 4283
6 3303383
7 4156965497
8 2439821215787
9 25768363425203859
10 2832420937806122764581
11 4560420339293289548844701
12 1405739820979794860218217874663237
13 16339745488551090702175554269302914589235
14 511682012237090112121527245846398145676326299 

[1,21,227,4283,3303383,4156965497,2439821215787,
 25768363425203859,2832420937806122764581,
 4560420339293289548844701,
 1405739820979794860218217874663237,
 16339745488551090702175554269302914589235,
 511682012237090112121527245846398145676326299]

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Last modified August 31 18:44 EDT 2024. Contains 375573 sequences. (Running on oeis4.)