%I #9 Jul 15 2021 06:25:45
%S 4623,5378,7981,34953,46866,53135,65048,7056187,9783460,43176671,
%T 56823330,97999801,447255476453,552744523548,755424659535,
%U 799319866014,997999998001,4297663349524,5702336650477,6971253996228,7574200549228,8843117894979,3505613322543666,3757750389995601,3948262973033353
%N Numbers k such that the square of k is the concatenation of two numbers m and m-8.
%H David A. Corneth, <a href="/A115446/b115446.txt">Table of n, a(n) for n = 1..1730</a>
%e 18642249_18642241 = 43176671^2.
%Y Cf. A030467, A106497, A115435, A115427, A115438, A115439, A115440, A115441, A115442, A115443, A115444, A115445, A115447.
%K base,nonn
%O 1,1
%A _Giovanni Resta_, Jan 25 2006
%E More terms from _David A. Corneth_, Jan 02 2021