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In A077436 but not in A023758.
Table of n, a(n) for n=1..51.
G. Melfi, On simultaneous binary expansions of n and n^2.
Sequence in context: A015984 A235227 A039544 * A117244 A039436 A043259
Adjacent sequences: A091816 A091817 A091818 * A091820 A091821 A091822
Ralf Stephan, Mar 08 2004