A125293 - OEIS

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

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OFFSET

1,1

COMMENTS

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

A125291(a(n)) > 1.

LINKS

Table of n, a(n) for n=1..68.

Eric Weisstein's World of Mathematics, Ternary

Index entries for 3-automatic sequences.

MATHEMATICA

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