|
| |
|
|
A007237
|
|
Number of triangles with integer sides and area = n times perimeter.
(Formerly M3878)
|
|
4
| |
|
|
5, 18, 45, 45, 52, 139, 80, 89, 184, 145, 103, 312, 96, 225, 379, 169, 116, 498, 123, 328, 560, 280, 134, 592, 228, 271, 452, 510, 134, 1036, 144, 280, 639, 339, 597, 1119, 139, 354, 635, 648, 162, 1486, 169, 594, 1215, 354, 186, 1066, 369, 622
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,1
|
|
|
REFERENCES
| Problem E3408, Amer. Math. Monthly, 99 (1992), 175-176.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
|
|
|
CROSSREFS
| Sequence in context: A160969 A101105 A037140 * A000339 A081435 A109363
Adjacent sequences: A007234 A007235 A007236 * A007238 A007239 A007240
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| Simon Plouffe (simon.plouffe(AT)gmail.com)
|
|
|
EXTENSIONS
| a(16)-a(50)from Les Reid (lesreid(AT)missouristate.edu), Jul 06 2010
|
| |
|
|
