This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A066271 Numbers n such that A066256(n) = n^2-2*n+2. 0
 3, 4, 6, 7, 9, 13, 15, 16, 18, 21, 22, 25, 28, 34, 39, 42, 51, 55, 58, 60, 61, 63, 67, 70, 72, 73, 76, 78, 79, 81, 90, 91, 100, 102, 106, 111, 112, 118, 120, 132, 139, 141, 142, 144, 148, 151, 154, 156, 157, 162, 163, 165, 168, 169, 174, 177, 189, 190, 193, 195, 204 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS MATHEMATICA f[n_] := Block[{k = 1}, While[m = (k^2 + n)/(n^2 + k); !IntegerQ[m] || m == 1, k++ ]; k]; Select[ Range[2, 206], f[ # ] == #^2 - 2# + 2 &] CROSSREFS Sequence in context: A137673 A226245 A236386 * A127594 A094604 A108654 Adjacent sequences:  A066268 A066269 A066270 * A066272 A066273 A066274 KEYWORD nonn AUTHOR Benoit Cloitre, Dec 31 2001 EXTENSIONS Edited by Robert G. Wilson v, Jan 14 2004 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 October 17 06:08 EDT 2019. Contains 328106 sequences. (Running on oeis4.)