|
|
A101397
|
|
Numbers n such that 4*10^n+3 is prime.
|
|
2
|
|
|
0, 1, 3, 7, 10, 40, 419, 449, 1737, 2245, 3131, 3813, 5345, 5659, 5681, 8410, 9097, 11293, 21061
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,3
|
|
COMMENTS
|
See Kamada link for search limit and prime vs. PRP status.
|
|
LINKS
|
|
|
FORMULA
|
|
|
EXAMPLE
|
n = 1, 3, 7, 10 are members since 43, 4003, 40000003 and 40000000003 are prime numbers.
|
|
MATHEMATICA
|
Do[ If[ PrimeQ[4*10^n + 3], Print[n]], {n, 0, 10000}] (* Robert G. Wilson v, Jan 18 2005 *)
|
|
PROG
|
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Julien Peter Benney (jpbenney(AT)ftml.net), Jan 15 2005
|
|
EXTENSIONS
|
|
|
STATUS
|
approved
|
|
|
|