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A126231 Odd interprimes divisible by 19. 8
399, 741, 855, 969, 1197, 1425, 1995, 3021, 3705, 4085, 4731, 4807, 4883, 5415, 5529, 5833, 7315, 7695, 7847, 7923, 8075, 8341, 9063, 9177, 9215, 9823, 10317, 10431, 10507, 10545, 11077, 11115, 11267, 11305, 11457, 11685, 12483, 13167, 13623 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
MAPLE
select(t ->nextprime(t)+prevprime(t)=2*t, [seq(i, i=19..20000, 38)]); # Robert Israel, Mar 17 2020
MATHEMATICA
Do[If[OddQ[(Prime[n + 1] + Prime[n])/2] && Mod[(Prime[n + 1] + Prime[n])/2, 19] == 0, Print[(Prime[n + 1] + Prime[n])/2]], {n, 1, 3000}]
Select[Mean/@Partition[Prime[Range[2000]], 2, 1], OddQ[#]&&Divisible[#, 19]&] (* Harvey P. Dale, Jan 24 2014 *)
CROSSREFS
Sequence in context: A352360 A176911 A202158 * A158317 A227008 A253597
KEYWORD
nonn
AUTHOR
Artur Jasinski, Dec 21 2006
EXTENSIONS
Extended by Ray Chandler, Jan 09 2007
STATUS
approved

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Last modified June 16 10:55 EDT 2024. Contains 373425 sequences. (Running on oeis4.)