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A130468 Primes q of the form a^3+b^2, such that p =A130467(n)= a^2+b^3 is prime and smaller than q; p < q ; b < a. 1

%I #3 Sep 24 2013 09:24:40

%S 31,73,733,359,1009,2753,2213,1753,1367,1049,5857,1777,21961,13873,

%T 8081,10729,6959,54881,36037,91141,59419,110641,140617,43019,3571,

%U 157489,157513,195121,140689,195193,274661,314441,15881,227081,250147,6121

%N Primes q of the form a^3+b^2, such that p =A130467(n)= a^2+b^3 is prime and smaller than q; p < q ; b < a.

%F q=a^2+b^3; p=a^3+b^2; p < q ; a < b

%e a(5)=1009 because 1009=10^3+3^2 and A130467(5)=127 =10^2 + 3^3 ; 127 >1009; 3 > 10

%Y Cf. A130467; A000040.

%K easy,nonn

%O 1,1

%A _Tomas Xordan_, May 27 2007

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Last modified February 21 22:50 EST 2024. Contains 370239 sequences. (Running on oeis4.)