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%I A155709 #4 Jul 14 2012 11:32:23
%S A155709 22,33,73,88,97,118,121,132,150,166,177,193,198,214,225,241,249,262,
%T A155709 292,294,297,313,321,337,352,358,388,393,409,433,438,441,454,457,472,
%U A155709 484,502,528,537,550,577,582,600,601,649,657,664,673,681,694,708,726,753
%N A155709 Intersection of A154777 and A155716: N = a^2 + 2b^2 = c^2 + 6d^2 for some positive integers a,b,c,d.
%C A155709 Subsequence of A155569 (where a,b,c,d may be zero).
%o A155709 (PARI) isA155709(n,/* optional 2nd arg allows us to get other sequences */c=[6,2]) = { for(i=1,#c, for(b=1,sqrtint((n-1)\c[i]), issquare(n-c[i]*b^2) & next(2)); return);1}
%o A155709 for( n=1,999, isA155709(n) & print1(n","))
%Y A155709 Cf. A000404, A154777, A092572, A097268, A154778, A155716, ...
%K A155709 easy,nonn
%O A155709 1,1
%A A155709 _M. F. Hasler_, Jan 25 2009

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