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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A110133 Numbers which are the sides that belong to only one primitive Pythagorean triangle. 1
3, 4, 7, 8, 9, 11, 16, 19, 23, 27, 31, 32, 43, 47, 49, 59, 64, 67, 71, 79, 81, 83, 103, 107, 121, 127, 128, 131, 139, 151, 163, 167, 179, 191, 199, 211, 223, 227, 239, 243, 251, 256, 263, 271, 283, 307, 311, 331, 343, 347, 359, 361, 367, 379, 383, 419, 431, 439 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Powers of 2 starting with 2^2=4 and powers of primes of form 4k+3; none is a hypotenuse. (Chandler)

CROSSREFS

Cf. A024357, A024363, A110134.

Sequence in context: A192052 A187230 A187901 * A205647 A187903 A187839

Adjacent sequences:  A110130 A110131 A110132 * A110134 A110135 A110136

KEYWORD

nonn

AUTHOR

Lekraj Beedassy (blekraj(AT)yahoo.com), Jul 13 2005

EXTENSIONS

Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Jul 21 2005

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 16 20:23 EST 2012. Contains 205962 sequences.