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A166708 Squares in A105720. 0

%I

%S 36,169,247590225

%N Squares in A105720.

%e 36=6^2=A105720(3),

%e 169=13^2=A105720(6),

%e 247590225=15735^2=A105720(4072)

%e No more terms up to 35746494200563714=A105720(34769014).

%t a=5;Do[a=a-Prime[n]+Prime[2n+1]+Prime[2n+2];If[IntegerQ[Sqrt[a]],Print[{a,n+1 }]],{n,1,10^8}];

%Y Cf. A105720, A166619, A166620.

%K more,nonn,bref

%O 1,1

%A _Zak Seidov_, Oct 18 2009

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Last modified May 8 20:32 EDT 2021. Contains 343668 sequences. (Running on oeis4.)