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A241971 Numbers congruent to some square mod 10^k for all values of k. 0


%S 1,4,9,16,25,36,41,49,64,81,89,100,121,129,144,161,164,169,196,201,

%T 209,225,241,249,256,281,289,321,324,329,356,361,369,400,401,409,441,

%U 449,481,484,489,516,521,529,561,569,576,601,609,625

%N Numbers congruent to some square mod 10^k for all values of k.

%C Union of squares and A241081.

%e 41 is a term because there are squares ending in ...0041 for any number of 0's.

%Y Cf. A241081 (nonsquare numbers in this sequence).

%K nonn

%O 1,2

%A _J. Lowell_, May 03 2014

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Last modified December 1 04:36 EST 2022. Contains 358454 sequences. (Running on oeis4.)