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A051420
Numbers k such that
A000081
(k) is prime.
4
3, 10, 15, 343, 387, 1087, 2981, 96761
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OFFSET
1,1
COMMENTS
A000081
(2981) = O(10^1400) is only a probably prime. No more terms < 6000.
No more terms < 40000. -
Vaclav Kotesovec
, Jul 07 2020
A000081
(96761) is a probable prime. No other terms < 100000. -
Mathieu Gouttenoire
, Oct 08 2021
LINKS
Table of n, a(n) for n=1..8.
CROSSREFS
Cf.
A000081
,
A119642
,
A185667
,
A336039
.
Sequence in context:
A370437
A259877
A182334
*
A367257
A092827
A087904
Adjacent sequences:
A051417
A051418
A051419
*
A051421
A051422
A051423
KEYWORD
nonn
,
more
AUTHOR
David Broadhurst
EXTENSIONS
a(8) from
Mathieu Gouttenoire
, Oct 08 2021
STATUS
approved
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Last modified May 23 02:40 EDT 2024. Contains 372758 sequences. (Running on oeis4.)