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A163623 Primes of the form 120*k + 1. 4
241, 601, 1201, 1321, 1801, 2161, 2281, 2521, 3001, 3121, 3361, 4201, 4441, 4561, 4801, 5281, 5521, 5641, 5881, 6121, 6361, 6481, 6841, 6961, 7321, 7561, 7681, 8161, 8521, 8641, 8761, 9001, 9241, 9601, 9721, 10321, 11161, 12241, 12601, 12721, 12841 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

a(n) = 120*A163624(n) + 1.

LINKS

G. C. Greubel, Table of n, a(n) for n = 1..5000

MATHEMATICA

Select[120*Range[120]+1, PrimeQ] (* Harvey P. Dale, Dec 05 2013 *)

PROG

(MAGMA) [a: n in [0..250]|IsPrime(a) where a is 120*n+1] // Vincenzo Librandi, Dec 13 2010

(PARI) lista(nn) = forprime(p=2, nn, if (!((p-1) % 120), print1(p, ", "))); \\ Michel Marcus, Jul 31 2017

CROSSREFS

Cf. A163573, A163624.

Sequence in context: A142275 A260605 A097020 * A142856 A204355 A159806

Adjacent sequences:  A163620 A163621 A163622 * A163624 A163625 A163626

KEYWORD

nonn

AUTHOR

Zak Seidov, Aug 01 2009

STATUS

approved

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Last modified December 6 09:43 EST 2021. Contains 349563 sequences. (Running on oeis4.)