OFFSET
1,1
COMMENTS
[p(i)+p(i+1)]^2+5 is a prime.
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..1000
EXAMPLE
a(5)=97 since (97+101)^2+5=198^2+5=39204+5=39209 is a prime.
MATHEMATICA
Transpose[Select[Partition[Prime[Range[400]], 2, 1], PrimeQ[Total[#]^2+ 5]&]] [[1]] (* Harvey P. Dale, Feb 15 2014 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Carmine Suriano, Oct 18 2010
EXTENSIONS
Values 521, 547, 577, 769,.. inserted by R. J. Mathar, Oct 18 2010
STATUS
approved