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A162454
Primes of the form (prime(j)#)^2 + prime(j)# + 1.
1
7, 43, 901830931
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OFFSET
1,1
COMMENTS
Generated from prime(j)# =
A002110
(j) at j= 1, 2, 6, 115, 152, ... [
R. J. Mathar
, Jul 10 2009]
a(6) ~ 4.145...*10^2477 corresponds to j = 420. -
Amiram Eldar
, Jul 18 2019
LINKS
Amiram Eldar,
Table of n, a(n) for n = 1..5
MATHEMATICA
Select[Table[(Product[Prime[i], {i, 1, j}])^2 + Product[Prime[i], {i, 1, j}]+1, {j, 1, 10}], PrimeQ]
CROSSREFS
Cf.
A002110
.
Sequence in context:
A258182
A048605
A165210
*
A203210
A323923
A026116
Adjacent sequences:
A162451
A162452
A162453
*
A162455
A162456
A162457
KEYWORD
nonn
,
bref
AUTHOR
Daniel Tisdale
, Jul 03 2009
STATUS
approved
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Last modified April 18 11:29 EDT 2024. Contains 371779 sequences. (Running on oeis4.)