OFFSET
1,1
LINKS
Peter J. C. Moses, Table of n, a(n) for n = 1..5000
FORMULA
A226770(a^2(n) - 1) = 3.
MATHEMATICA
Select[Prime[Range[3000]], And@@PrimeQ[#1^2-1+First[#2]]&&Last[#2]=={1, 1}&[#1, Transpose[FactorInteger[#^2+#-1]]]&] (* Peter J. C. Moses, Jul 05 2013 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Vladimir Shevelev, Jul 04 2013
EXTENSIONS
More terms from Peter J. C. Moses.
STATUS
approved