A091091 Numbers needing in binary and ternary representation an equal minimal number of editing steps (delete, insert or substitute) to transform them into their square.

0, 1, 5, 6, 8, 11, 13, 16, 17, 18, 19, 33, 35, 38, 40, 56, 60, 74, 122, 123, 133, 143, 146, 164, 168, 173, 299, 350, 365, 429, 497, 515, 527, 564, 566, 593, 608, 611, 710, 1031, 1050, 1052, 1059, 1088, 1089, 1090, 1092, 1096, 1105, 1287, 1301, 1316, 1322

Offset: 1

Author

Reinhard Zumkeller, Dec 18 2003

Keywords

• nonn
• base

Comments

A091092(a(n)) = A091093(a(n)).

Links

• Michael Gilleland, Levenshtein Distance [It has been suggested that this algorithm gives incorrect results sometimes. - _N. J. A. Sloane_]
• Eric Weisstein's World of Mathematics, Square Number
• Eric Weisstein's World of Mathematics, Binary
• Eric Weisstein's World of Mathematics, Ternary

Crossrefs

Cf. A007088, A001737, A007089, A001738, A000290.