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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
Primes of the form A023201(i)+A046117(i)-1 or of the form 2*A087695(j)-1.
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
Sequence in context: A192505 A141184 A033212 * A274507 A032743 A106861
KEYWORD
easy,nonn
AUTHOR
Giovanni Teofilatto, Apr 02 2005
EXTENSIONS
Corrected definition. Extended beyond a(7). - R. J. Mathar, Nov 26 2008
STATUS
approved

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Last modified March 28 14:33 EDT 2024. Contains 371254 sequences. (Running on oeis4.)