A031732 - OEIS

%I #13 Jul 15 2021 01:52:27

%S 730,2918,6564,11668,18230,26250,35728,46664,59058,72910,88220,104988,

%T 123214,142898,164040,186640,210698,236214,263188,291620,321510,

%U 352858,385664,419928,455650,492830,531468,571564,613118,656130,700600,746528

%N Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 54.

%C a(n) = 729n^2 + n for n < 57, but a(57) = 2289224. - _Charles R Greathouse IV_, Aug 04 2017

%H Charles R Greathouse IV, <a href="/A031732/b031732.txt">Table of n, a(n) for n = 1..10000</a>

%K nonn

%O 1,1

%A _David W. Wilson_