This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A176790 Honaker primes of the form n^2+1. 2
 3137, 4357, 13457, 80657, 115601, 184901, 309137, 341057, 1008017, 1073297, 4227137, 5541317, 11806097, 16974401, 18576101, 22848401, 24443137, 24542117, 27625537, 28132417 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS The intersection of A033548 with A002522 or with A002496. The list of associated n is: 56, 66, 116, 284, 340, 430, 556, 584, 1004, 1036, 2056,... The associated indices in A002496 are: 14, 15, 21, 48, 53, 61, 73, 76, 113, 115, 215, 243, 341, 395, 414,... REFERENCES M. Aigner: Diskrete Mathematik, Vieweg u. Teubner, 6. Aufl., 2006 E. Grosswald: Representations of Integers as Sums of Squares, Springer-Verlag, Berlin, 1985 H. Scheid: Zahlentheorie, Spektrum Akademischer Verlag, 4. Aufl., 2006 LINKS EXAMPLE a(1) = 3137 = 56^2+1 = A033548(24). a(2) = 4357 = 66^2+1 = A033548(31). CROSSREFS Cf. A000040, A002496, A033548, A176012, A176111, A176465 Sequence in context: A061048 A250849 A238499 * A086103 A267721 A031554 Adjacent sequences:  A176787 A176788 A176789 * A176791 A176792 A176793 KEYWORD base,nonn AUTHOR Ulrich Krug (leuchtfeuer37(AT)gmx.de), Apr 26 2010 EXTENSIONS Comments tightened by R. J. Mathar, Jun 07 2010 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified August 26 05:50 EDT 2019. Contains 326330 sequences. (Running on oeis4.)