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A089716 Primes that are both congruent to 1 mod 10 and congruent to 1 or 2 mod 9. 0

%I #19 Oct 30 2018 10:31:02

%S 11,101,181,191,271,281,461,541,631,641,811,821,911,991,1091,1171,

%T 1181,1361,1451,1531,1621,1721,1801,1811,1901,2081,2161,2251,2341,

%U 2351,2441,2521,2531,2621,2711,2791,2801,2971,3061,3251,3331,3511,3691,3701,3881

%N Primes that are both congruent to 1 mod 10 and congruent to 1 or 2 mod 9.

%F A030430 INTERSECT { A061237 UNION A061238 }.

%t nn=3881;Sort@Select[Join[Range[11,nn,90],Range[1,nn,90]],PrimeQ] (* _Zak Seidov_, Dec 27 2011 *)

%K nonn

%O 1,1

%A _Roger L. Bagula_, Jan 06 2004

%E Edited by _N. J. A. Sloane_, Feb 04 2008

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Last modified March 29 10:22 EDT 2024. Contains 371268 sequences. (Running on oeis4.)