

A108180


Numbers n such that n^n * (n!/n#) + 1 is prime, where n# = primorial numbers (A034386).


0



1, 2, 8, 20, 23, 55, 57, 58, 181, 741, 939
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OFFSET

1,2


COMMENTS

n!/n# is known as n compositorial. All values have been proved prime. No more terms up to 3200.


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CROSSREFS



KEYWORD

more,nonn


AUTHOR



STATUS

approved



