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 A164344 A positive integer is included if its square contains the same number of 0's as 1's when represented in binary. 2
 3, 7, 13, 15, 25, 29, 31, 54, 57, 61, 63, 103, 110, 113, 118, 121, 125, 127, 199, 203, 207, 212, 213, 214, 218, 230, 238, 241, 246, 249, 253, 255, 389, 393, 394, 395, 402, 404, 409, 421, 431, 433, 435, 439, 458, 468, 478, 481, 486, 494, 497, 502, 505, 509, 511 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Harvey P. Dale, Table of n, a(n) for n = 1..1000 MATHEMATICA sn01Q[n_]:=Module[{idn2=IntegerDigits[n^2, 2]}, Count[idn2, 1] == Length[ idn2]/2]; Select[Range[600], sn01Q] (* Harvey P. Dale, Apr 03 2016 *) CROSSREFS Sequence in context: A002236 A255682 A080565 * A002254 A331036 A060657 Adjacent sequences:  A164341 A164342 A164343 * A164345 A164346 A164347 KEYWORD base,nonn AUTHOR Leroy Quet, Aug 13 2009 EXTENSIONS More terms from Sean A. Irvine, Oct 08 2009 STATUS approved

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Last modified September 17 03:42 EDT 2021. Contains 347478 sequences. (Running on oeis4.)