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A051420 n such that A000081(n) is prime. 4
3, 10, 15, 343, 387, 1087, 2981 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

A000081(2981) = O(10^1400) is only a probably prime. No more terms < 6000.

No more terms < 40000. - Vaclav Kotesovec, Jul 07 2020

LINKS

Table of n, a(n) for n=0..6.

CROSSREFS

Cf. A000081, A119642, A336039.

Sequence in context: A175336 A259877 A182334 * A092827 A087904 A242203

Adjacent sequences:  A051417 A051418 A051419 * A051421 A051422 A051423

KEYWORD

nonn

AUTHOR

David Broadhurst

STATUS

approved

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Last modified May 18 05:01 EDT 2021. Contains 343994 sequences. (Running on oeis4.)