A091819 Numbers k that have, in binary, the same number of ones as are in k^2 and which have no nonincreasing binary representation.

79, 91, 157, 158, 159, 182, 183, 187, 279, 287, 314, 316, 317, 318, 319, 351, 364, 365, 366, 374, 375, 379, 445, 558, 573, 574, 575, 628, 632, 634, 636, 637, 638, 639, 702, 703, 728, 730, 732, 735, 748, 750, 751, 758, 759, 763, 815, 890, 893, 975, 1071

Offset

1,1

Comments

In A077436 but not in A023758.

Links

Table of n, a(n) for n=1..51.

G. Melfi, On simultaneous binary expansions of n and n^2, arXiv:math/0402458 [math.NT], 2004.

Crossrefs

Sequence in context: A015984 A235227 A039544 * A318158 A117244 A039436

Adjacent sequences: A091816 A091817 A091818 * A091820 A091821 A091822

Keyword

nonn

Author

Ralf Stephan, Mar 08 2004

Status

approved