A039138 Numbers whose base-10 representation has the same number of 3's and 7's.

0, 1, 2, 4, 5, 6, 8, 9, 10, 11, 12, 14, 15, 16, 18, 19, 20, 21, 22, 24, 25, 26, 28, 29, 37, 40, 41, 42, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55, 56, 58, 59, 60, 61, 62, 64, 65, 66, 68, 69, 73, 80, 81, 82, 84, 85, 86, 88, 89, 90, 91, 92, 94, 95, 96, 98, 99, 100, 101, 102

Offset

1,3

Links

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

Crossrefs

Sequence in context: A276216 A226946 A288708 * A285670 A030124 A064318

Adjacent sequences: A039135 A039136 A039137 * A039139 A039140 A039141

Keyword

nonn,base,easy

Author

Olivier Gérard

Status

approved