OFFSET
1,1
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..10000
EXAMPLE
32318 is in the sequence because 32318^2 + 1 = 5 ^ 7 * 29 * 461.
6826318 is in the sequence because 6826318^2 + 1 = 5 ^ 3 * 13 ^ 8 * 457.
MATHEMATICA
Select[Range[2, 1500000], Max[Transpose[FactorInteger[#^2+1]][[2]]]>6&]
CROSSREFS
KEYWORD
nonn
AUTHOR
Michel Lagneau, Nov 02 2012
STATUS
approved