OFFSET
1,1
COMMENTS
The sequence A224718 of Zak Seidov, about prime numbers p such that p^2+1 is not squarefree.
MATHEMATICA
p = Select[Prime[Range[250]], !SquareFreeQ[#^2+1]&]; p^2 * (p^2+1)
CROSSREFS
KEYWORD
nonn
AUTHOR
Rafael Parra Machio, May 20 2013
STATUS
approved