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A077729 Smallest square beginning with n copies of n. 3

%I

%S 1,225,3330625,44448889,55555432804,6666662032144,77777777127241,

%T 8888888859057216,99999999989350756,

%U 101010101010101010103146096508501770025,1111111111111111111111185920458269940592889,121212121212121212121212460158453802091945103889

%N Smallest square beginning with n copies of n.

%C From a(1) up to a(12), except for n = 7, these smallest squares begin with exactly n copies of n, but a(7) begins with 8 copies of 7. What is the smallest square beginning with exactly 7 copies of 7? - _Bernard Schott_, Jan 29 2022

%C 27888667^2 = 777777747036889 begins with exactly 7 copies of 7. - _Michel Marcus_, Jan 30 2022

%Y Cf. A077730.

%K base,nonn

%O 1,2

%A _Amarnath Murthy_, Nov 19 2002

%E Corrected and extended by _Sascha Kurz_, Jan 04 2003

%E a(11)-a(12) from _Bernard Schott_, Jan 29 2022

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Last modified May 28 13:05 EDT 2022. Contains 354115 sequences. (Running on oeis4.)