|
|
A228054
|
|
Lower twin prime-indexed primes in the sequence of prime(prime(i)).
|
|
2
|
|
|
5, 11, 277, 25301, 51131, 70117, 82757, 124777, 167113, 178813, 190573, 199033, 200983, 201827, 285977, 334423, 418631, 444523, 470077, 470207, 495611, 529513, 556691, 582011, 636997, 653617, 660557, 725321, 808597, 880421, 895003, 961183, 1015361, 1088387
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
The sequence prime(prime(i)) for i = 1, 2, 3,... is in A006450. The paper by Bayless et al. discusses these primes.
It is not clear what the "twin primes" are in the sequence prime(prime(prime(i))). I computed 10^7 terms, last of which is 91132598237. - T. D. Noe, Aug 10 2013
|
|
LINKS
|
|
|
EXAMPLE
|
5 is here because 5 and 11 are adjacent terms in A006450 differing by 6.
|
|
MATHEMATICA
|
nn = 10000; t = Table[Prime[Prime[n]], {n, nn}]; s = Select[Range[nn - 1], t[[# + 1]] - t[[#]] == 6 &]; t[[s]]
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|