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A175233
Numbers n with property that n and 4*n^2 + 163 are terms in A057605.
1
2, 3, 4, 5, 7, 8, 9, 10, 11, 12, 14, 16, 19, 24, 27, 28, 29, 33, 39, 45, 49, 58, 64, 69, 74, 80, 81, 82, 89, 97, 104, 110, 113, 114, 121, 127, 128, 132, 141, 150, 154, 160, 165, 169, 171, 180, 193, 197, 208, 212, 217, 220, 222, 227, 232, 233, 244, 253, 264, 269, 275
OFFSET
1,1
COMMENTS
Numbers n with property that both m=4*n^2 + 163 and p=4*m^2 + 163 are primes.
LINKS
FORMULA
n = 2: m = 4*n^2 + 163 = 179 and p = 4*m^2 + 163 = 128327 are primes.
MATHEMATICA
mpQ[n_]:=Module[{m=4n^2+163}, And@@PrimeQ[{m, 4m^2+163}]]; Select[Range[300], mpQ] (* Harvey P. Dale, Jul 15 2013 *)
CROSSREFS
Intersection of A057604 and A057605.
Sequence in context: A347528 A002855 A303234 * A346130 A121229 A286291
KEYWORD
nonn
AUTHOR
Zak Seidov, Mar 09 2010
EXTENSIONS
Edited by Zak Seidov, Mar 17 2010
STATUS
approved