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A301637
Primes of the form 4^k + k + 1.
1
2, 19, 5444517870735015415413993718908291383363
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OFFSET
1,1
LINKS
Table of n, a(n) for n=1..3.
FORMULA
a(n) = 4^(2*
A301633
(n)) + 2*
A301633
(n) + 1.
MAPLE
a:=n->`if`(isprime(4^k+k+1), 4^k+k+1, NULL): seq(a(k), k=0..300); #
Muniru A Asiru
, Mar 25 2018
CROSSREFS
Primes of the form b^k+k+1:
A061421
(b=2),
A182327
(b=3), this sequence (b=4).
Cf.
A301633
.
Sequence in context:
A306207
A355466
A073444
*
A366333
A366331
A210416
Adjacent sequences:
A301634
A301635
A301636
*
A301638
A301639
A301640
KEYWORD
nonn
AUTHOR
Seiichi Manyama
, Mar 25 2018
STATUS
approved
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Last modified May 23 05:11 EDT 2024. Contains 372758 sequences. (Running on oeis4.)