Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A127494
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A127494 a(1)=2, a(2)=3; a(n)=a(n-2)+s^2, where s^2 is a minimal square such that a(n) is prime and is not already in the sequence. +0
1
2, 3, 11, 7, 47, 23, 83, 59, 227, 383, 263, 419, 587, 563, 911, 599, 947, 743, 983, 887, 1019, 1031, 1163, 1607, 1307, 1931, 1451, 5531, 1487, 6827, 1523, 6863, 1559, 6899, 2459, 7043, 3359, 7079, 4259, 12263, 4583, 13163, 5483, 13487, 5519, 13523, 5843 (list; graph; listen)
OFFSET

1,1

MATHEMATICA

a={2, 3}; Do[aa=a[[ -2]]; Do[b=aa+s^2; If[FreeQ[a, b]&&PrimeQ[b], AppendTo[a, b]; Break[]], {s, 1000000}], {1008}]; a

CROSSREFS

Sequence in context: A086146 A082618 A083758 this_sequence A130803 A007932 A035122

Adjacent sequences: A127491 A127492 A127493 this_sequence A127495 A127496 A127497

KEYWORD

nonn

AUTHOR

Zak Seidov (zakseidov(AT)gmail.com), Mar 31 2007

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.


AT&T Labs Research