A067178 - OEIS

%I #6 Jun 27 2018 09:32:05

%S 1,4,16,9,64,49,169,576,289,1849,4489,3969,17956,6889,27889,69696,

%T 98596,97969,499849,1887876,698896,2778889,4999696,9696996,19998784,

%U 46689889,66699889,79869969,277788889,478996996,876988996,3679999569,1749999889

%N Smallest square whose sum of digits is A056991(n).

%C The smallest square giving a possible digit sum.

%H Giovanni Resta, <a href="/A067178/b067178.txt">Table of n, a(n) for n = 1..94</a>

%H Amarnath Murthy, <a href="http://www.gallup.unm.edu/~smarandache/MurthyBook.pdf">Fabricating perfect squares with a given valid digits sum</a>, page 154 in "Generalized partitions and New Ideas on Number Theory and Smarandache Sequences" by A. Murthy and C. Ashbacher

%Y Cf. A056991, A067179.

%K nonn,base

%O 1,2

%A _Amarnath Murthy_, Jan 09 2002

%E Corrected and extended by Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 24 2003

%E Offset corrected. - _R. J. Mathar_, Aug 26 2009