A138538 Numbers m such that A043555(m) = A043555(m^2).

0, 1, 2, 3, 5, 6, 9, 15, 16, 18, 19, 20, 27, 38, 45, 47, 48, 54, 57, 60, 81, 97, 104, 114, 135, 139, 141, 142, 144, 162, 171, 178, 180, 181, 243, 291, 298, 312, 335, 342, 405, 416, 417, 423, 426, 432, 486, 497, 506, 508, 513, 518, 524, 534, 540, 543, 590, 628, 729

Offset

0,3

Links

Zak Seidov, Table of n, a(n) for n = 0..1000

Mathematica

Select[Range[0, 729], Length[Split[IntegerDigits[#, 3]]] ==Length[Split[IntegerDigits[#^2, 3]]]&] (* James C. McMahon, Jun 07 2025 *)

Crossrefs

Cf. A043555.

Sequence in context: A278707 A294631 A059454 * A240555 A102694 A124253

Adjacent sequences: A138535 A138536 A138537 * A138539 A138540 A138541

Keyword

base,nonn

Author

Zak Seidov, Mar 24 2008

Status

approved