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Integers k such that 11 + 210*k*i is prime for i = 0..7.
1

%I #14 Jan 22 2014 04:00:09

%S 5763,12018,22801,50132,61637,94360,109218,134995,136610,155577,

%T 206873,225384,246512,257764,284794,288691,303437,317914,370530,

%U 385202,418722,431434,490450,515765,548617,560188,597275,693940,704899,768433,786934,819640,840480

%N Integers k such that 11 + 210*k*i is prime for i = 0..7.

%C Primes in AP. Longest AP with a(1) = 11 has 11 terms, see A206045.

%H Zak Seidov, <a href="/A235393/b235393.txt">Table of n, a(n) for n = 1..10000</a>

%F a(n) = A206042(n)/210.

%o (From _M. F. Hasler_, Jan 15 2014) (Start)

%o (PARI) is_A235393(k)=!for(i=1,7,ispseudoprime(11+210*k*i)||return)

%o (PARI) for(k=1,1e6,is_A235393(k) && print1(k",")) \\ (End)

%Y Cf. A206042, A206045.

%K nonn

%O 1,1

%A _Zak Seidov_, Jan 09 2014