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A154712 (6*n)^2 = A154711. 1
1, 2, 6, 12, 13, 28, 33, 34, 57, 72, 76, 82, 89, 98, 99, 111, 121, 126, 131, 134, 166, 169, 202, 203, 208, 209, 211, 219, 224, 246, 252, 259, 301, 302, 317, 348, 383, 387, 394, 436, 439, 511, 512, 527, 572, 574, 642, 666, 667, 677, 726, 763, 769, 779, 792, 818 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

A154711 Squares such that square-+5 are primes.

LINKS

Table of n, a(n) for n=1..56.

MATHEMATICA

lst={}; Do[p=n^2; If[PrimeQ[p-5]&&PrimeQ[p+5], AppendTo[lst, (p^(1/2))/6]], {n, 6, 8!, 6}]; lst

Sqrt[#]/6&/@Select[Range[5000]^2, AllTrue[#+{5, -5}, PrimeQ]&] (* The program uses the AllTrue function from Mathematica version 10 *) (* Harvey P. Dale, Nov 20 2018 *)

CROSSREFS

Cf. A144938, A154709, A154710, A154711

Sequence in context: A145892 A216429 A250178 * A079849 A260907 A333833

Adjacent sequences:  A154709 A154710 A154711 * A154713 A154714 A154715

KEYWORD

nonn

AUTHOR

Vladimir Joseph Stephan Orlovsky, Jan 14 2009

STATUS

approved

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Last modified September 17 03:42 EDT 2021. Contains 347478 sequences. (Running on oeis4.)