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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A051215 Numbers of the form 4^x-y^2 >= 0. 1
0, 1, 3, 4, 7, 12, 15, 16, 28, 31, 39, 48, 55, 60, 63, 64, 87, 112, 124, 127, 135, 156, 175, 183, 192, 207, 220, 231, 240, 247, 252, 255, 256, 295, 348, 375, 399, 448, 495, 496, 508, 511, 540, 583, 615, 624, 663, 700, 732, 735, 759, 768, 799, 828, 847, 855, 880 (list; graph; refs; listen; history; internal format)
OFFSET

1,3

CROSSREFS

Sequence in context: A083561 A018195 A086417 * A192112 A034885 A130324

Adjacent sequences:  A051212 A051213 A051214 * A051216 A051217 A051218

KEYWORD

nonn

AUTHOR

David W. Wilson (davidwwilson(AT)comcast.net)

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 18 00:14 EST 2012. Contains 206085 sequences.