A039104 Numbers whose base-9 representation has the same number of 4's and 7's.

0, 1, 2, 3, 5, 6, 8, 9, 10, 11, 12, 14, 15, 17, 18, 19, 20, 21, 23, 24, 26, 27, 28, 29, 30, 32, 33, 35, 43, 45, 46, 47, 48, 50, 51, 53, 54, 55, 56, 57, 59, 60, 62, 67, 72, 73, 74, 75, 77, 78, 80, 81, 82, 83, 84, 86, 87, 89, 90, 91, 92, 93, 95, 96, 98, 99, 100, 101, 102

Offset

1,3

Links

Table of n, a(n) for n=1..69.

Crossrefs

Cf. A007095.

Sequence in context: A049386 A188320 A039143 * A184861 A183572 A285962

Adjacent sequences: A039101 A039102 A039103 * A039105 A039106 A039107

Keyword

nonn,base,easy

Author

Olivier Gérard

Status

approved