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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A020687 Numbers of form 5 x^2 + 8 y^2. 0
0, 5, 8, 13, 20, 28, 32, 37, 45, 52, 53, 72, 77, 80, 88, 92, 112, 117, 125, 128, 133, 148, 152, 157, 173, 180, 188, 197, 200, 205, 208, 212, 220, 245, 252, 253, 277, 280, 288, 293, 308, 317, 320, 325, 328, 333, 352, 368, 373, 380, 392, 397, 405, 412, 413, 437, 445, 448 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..58.

N. J. A. Sloane et al., Binary Quadratic Forms and OEIS (Index to related sequences, programs, references)

CROSSREFS

Sequence in context: A314460 A314461 A097404 * A035423 A314462 A314463

Adjacent sequences:  A020684 A020685 A020686 * A020688 A020689 A020690

KEYWORD

easy,nonn

AUTHOR

David W. Wilson

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.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 19 06:30 EDT 2019. Contains 322237 sequences. (Running on oeis4.)