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A246842 Primes p such that p + m^2 is prime for all m in {2,4,6,8,10,12,14,16}. 5

%I

%S 37,163,56893,409333,1483087,1867783,10101463,18292957,31284493,

%T 52896517,58048057,157861663,175933717,180336193,222640867,258001837,

%U 276739747,349693117,371305267,445890307,543764323,613305067,678551833,748576753,828497443

%N Primes p such that p + m^2 is prime for all m in {2,4,6,8,10,12,14,16}.

%C Primes p such that p + m^2, m = 2,4,6,8,10,12,14,16,18 are all primes:

%C 163, 409333, 1483087, 1867783, 222640867, 258001837, 371305267, 748576753, 828497443, 1235054137, ...

%C Primes p such that p + m^2, m = 2,4,6,8,10,12,14,16,18,20 are all primes:

%C 163, 409333, 828497443, ...

%H Zak Seidov and Jens Kruse Andersen, <a href="/A246842/b246842.txt">Table of n, a(n) for n = 1..10000</a> (first 34 terms from Zak Seidov)

%o (PARI) s=[]; forprime(p=2, 10e9, forstep(i=2, 16, 2, if(!isprime(p+i^2), next(2))); s=concat(s, p)); s \\ _Colin Barker_, Sep 05 2014

%Y Cf. A049492, A092120.

%K nonn

%O 1,1

%A _Zak Seidov_, Sep 05 2014

%E Typos in data and comments fixed by _Colin Barker_, Sep 05 2014

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Last modified July 13 03:03 EDT 2020. Contains 335673 sequences. (Running on oeis4.)