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Number of positive integers <= 2^n of form x^2 + 14 y^2.
0

%I #8 Jan 25 2022 21:49:21

%S 1,1,2,2,6,10,19,32,61,109,203,381,723,1371,2623,5040,9711,18781,

%T 36405,70710,137603,268242,523655,1023567,2002923,3923596,7693084,

%U 15097117,29649512,58271080,114596811,225504427,443998492,874651263,1723852015

%N Number of positive integers <= 2^n of form x^2 + 14 y^2.

%Y Cf. A244037.

%K nonn

%O 0,3

%A _David W. Wilson_