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Consider integers z such that C(z,4) = C(x,4) + C(y,4), x >= y >= 4, is solvable. Sequence gives values of x.
1

%I #14 Jun 12 2021 23:30:33

%S 7,190

%N Consider integers z such that C(z,4) = C(x,4) + C(y,4), x >= y >= 4, is solvable. Sequence gives values of x.

%H J. Leech, <a href="http://dx.doi.org/10.1017/S0305004100032850">Some solutions of Diophantine equations</a>, Proc. Camb. Phil. Soc., 53 (1957), 778-780.

%Y Cf. A020329.

%K nonn,bref

%O 1,1

%A _N. J. A. Sloane_