cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A073770 Primes p not of the form q + s where q is prime and s > 0 is the smallest square such that q + s is prime.

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%I A073770 #3 Mar 30 2012 17:27:39
%S A073770 2,5,13,19,29,31,37,43,61,67,73,79,103,109,127,139,151,157,163,179,
%T A073770 181,191,193,199,211,223,229,241,271,277,283,313,331,337,349,359,367,
%U A073770 373,379,397,409,421,431,433,439,463,487,499,521,523,541,547,569,571,577
%N A073770 Primes p not of the form q + s where q is prime and s > 0 is the smallest square such that q + s is prime.
%C A073770 A065377 is a subsequence of this sequence. Except for the initial term 2 this sequence is disjoint to A073609.
%e A073770 13 cannot be partitioned into a prime and a square > 0, so 13 is a term. The only partition of 19 into a prime and a square > 0 is (3,16), but 16 is not the smallest square s such that 3 + s is prime since 3 + 4 = 7 is also prime; therefore 19 is a term.
%Y A073770 Cf. A065377, A073609.
%K A073770 nonn
%O A073770 1,1
%A A073770 _Klaus Brockhaus_, Aug 08 2002