|
|
A104227
|
|
Primes one less than the sum over a sexy prime pair.
|
|
4
|
|
|
19, 31, 67, 79, 127, 139, 151, 199, 211, 307, 547, 619, 739, 751, 919, 1087, 1231, 1459, 1471, 1759, 1987, 2131, 2179, 2239, 2251, 2467, 2647, 2851, 2971, 3319, 3331, 3391, 3499, 3511, 3559, 3571, 3727, 3739, 4027, 4567, 4759, 5107, 5347, 5419, 5431, 6367, 6607, 6619, 7027, 7219, 7459
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
19=7+13-1 is a prime and one less than the sum 7+13 over the second sexy prime pair.
|
|
MATHEMATICA
|
Select[2#+5&/@Select[Prime[Range[600]], PrimeQ[#+6]&], PrimeQ] (* Harvey P. Dale, Jan 04 2020 *)
|
|
CROSSREFS
|
|
|
KEYWORD
|
easy,nonn
|
|
AUTHOR
|
|
|
EXTENSIONS
|
Corrected definition. Extended beyond a(7). - R. J. Mathar, Nov 26 2008
|
|
STATUS
|
approved
|
|
|
|