%I #18 Dec 20 2021 02:40:47
%S 0,1,4,9,10,11,14,16,19,25,36,40,41,44,49,64,81,90,91,94,99,100,101,
%T 104,109,110,111,114,116,119,121,125,136,140,141,144,149,160,161,164,
%U 169,181,190,191,194,196,199,225,250,251,254,256,259,289,324,360,361
%N Integers formed by concatenating squares.
%e 11 being the concatenation of 1 and 1, both squares, is in the sequence.
%e 120 is not in the sequence as none of 2, 12, 20 and 120 are squares. - corrected by _Peter Munn_, Nov 17 2017
%Y Cf. A000290 (squares), A152242 (integers formed by concatenating primes).
%K base,nonn
%O 1,3
%A _Zak Seidov_, Oct 15 2009
%E Corrected and extended by _Michel Marcus_, Oct 16 2013
%E Mispositioning of example corrected by _Peter Munn_, Nov 17 2017