[seqfan] Re: Generalizing Dirichlet, new sequences.

[Neil Sloane]

Richard, I think the first IS there, see A036570. But I will add the second
one,
which will be A278583.

Best regards
Neil

Neil J. A. Sloane, President, OEIS Foundation.
11 South Adelaide Avenue, Highland Park, NJ 08904, USA.
Also Visiting Scientist, Math. Dept., Rutgers University, Piscataway, NJ.
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On Wed, Nov 30, 2016 at 1:52 PM, rkg <rkg at ucalgary.ca> wrote:

> I didn't find 13, 37, 157, 541, 877, ... in OEIS.
> It is a subseq of A068228 = A141122. Nor did I find
> 12, 36, 156, 540, 876, ... These are the values of n
> for which n+1 is prime, n+2 is twice a prime and
> n+3 is thrice a prime.  The former sequence is
> primes p such that p+1 is twice a prime and p+2 is
> thrice a prime.  Presumably infinite, though I
> don't know what generalizations there are for
> Dirichlet's theorem on primes in arithmetic prograssions.
>
> I'm skating on thin ice -- see A045753, A002822.  R.
>