|
| |
|
|
A136009
|
|
Primes p for which the least pentagonal number q=n(3n+/-1)/2 which makes p+q prime satisfies 2q > p.
|
|
0
| |
|
|
3, 7, 13, 19, 23, 37, 43, 73, 103, 359, 503
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,1
|
|
|
COMMENTS
| Is the list complete?
|
|
|
REFERENCES
| G. N. Watson, Math. Notes 2103. ``A Curious Property of the Prime Number 503,'' Math. Gaz. vol 33, no 306, Dec 1949, pp302--303.
|
|
|
EXAMPLE
| For p=23, q=126. For p=503, q=590.
|
|
|
CROSSREFS
| Sequence in context: A133261 A113911 A051635 * A056531 A144917 A102828
Adjacent sequences: A136006 A136007 A136008 * A136010 A136011 A136012
|
|
|
KEYWORD
| more,nonn
|
|
|
AUTHOR
| Chris K. Caldwell (caldwell(AT)utm.edu), Mar 18 2008
|
| |
|
|
