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%I #19 Mar 08 2024 09:02:58
%S 1,4,10301,10496,10801,81619,1003001,1008001,100030001,100080001,
%T 326498249,10000300001,10000800001,24698199551,40012700004,
%U 1000003000001,1000008000001,4000127000004,4075127000004,8124407769251,78103531364504,100000030000001,100000080000001
%N Numbers k such that k^2 contains only digits {0,1,6}, not ending with zero.
%H Zhao Hui Du, <a href="/A058417/b058417.txt">Table of n, a(n) for n = 1..47</a>
%H Patrick De Geest, <a href="http://www.worldofnumbers.com/threedigits.htm">Index to related sequences</a>
%H Hisanori Mishima, <a href="http://www.asahi-net.or.jp/~KC2H-MSM/mathland/math02/math0210.htm#016">Sporadic tridigital solutions</a>
%Y Cf. A058418.
%K nonn,base
%O 1,2
%A _Patrick De Geest_, Nov 15 2000
%E Terms a(21) and above from _Zhao Hui Du_, Mar 07 2024