%I A068617
%S A068617 8,81,841,38416,3841600,384160000,38416000000,3841600000000,
%T A068617 384160000000000,38416000000000000,3841600000000000000,
%U A068617 384160000000000000000,38416000000000000000000
%N A068617 Starting from a(1)=8, each subsequent term is the minimal square obtained 
               by inserting at least one digit in the previous term.
%C A068617 The growing square sequence for 1 and 6, 2 and 5, 4 and 9 in pairs are 
               the same.
%F A068617 For n>=4, a(n) = 38416*100^(n-4)
%e A068617 a(2)=81 hence a(3) = 841 the smallest square formed from 81.
%Y A068617 Cf. A068175, A068176, A068177, A068178, A068616.
%Y A068617 Sequence in context: A007792 A098308 A055996 this_sequence A007778 A065440 
               A092366
%Y A068617 Adjacent sequences: A068614 A068615 A068616 this_sequence A068618 A068619 
               A068620
%K A068617 base,nonn
%O A068617 1,1
%A A068617 Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Feb 25 2002
%E A068617 More terms from Sean A. Irvine (sairvin(AT)xtra.co.nz), Sep 24 2009
%E A068617 Edited and extended by Max Alekseyev (maxale(AT)gmail.com), Oct 12 2009