login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A100357 Numbers n such that 2^n+n^2+1 is prime. 5
6, 12, 18, 162, 192, 216, 420, 1524, 5112, 7404 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

MATHEMATICA

{ta={{0}}, tb={{0}}}; Do[g=n; s=2^n+n^2+1; If[PrimeQ[s], Print[n]; ta=Append[ta, n]; tb=Append[tb, s]], {n, 1, 10000}]; {ta, tb, g}

CROSSREFS

Cf. A001580, A069539.

Sequence in context: A205859 A177708 A059961 * A190265 A135358 A187391

Adjacent sequences:  A100354 A100355 A100356 * A100358 A100359 A100360

KEYWORD

nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Nov 19 2004

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 17 19:13 EST 2012. Contains 206085 sequences.