A125293 Numbers with at least one 1 and one 2 in ternary representation.

5, 7, 11, 14, 15, 16, 17, 19, 21, 22, 23, 25, 29, 32, 33, 34, 35, 38, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 55, 57, 58, 59, 61, 63, 64, 65, 66, 67, 68, 69, 70, 71, 73, 75, 76, 77, 79, 83, 86, 87, 88, 89, 92, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106

Offset: 1

Author

Reinhard Zumkeller, Nov 26 2006

Keywords

• nonn
• base
• easy

Comments

Complement of A125292; A062756(a(n))*A081603(a(n)) > 0;

A125291(a(n)) > 1.

Links

• Eric Weisstein's World of Mathematics, Ternary
• Index entries for 3-automatic sequences.

Crossrefs

Cf. A007089, A125290.

Programs

Mathematica

Select[Range[120],DigitCount[#,3,1]>0&&DigitCount[#,3,2]>0&] (* Harvey P. Dale, Apr 12 2013 *)