A043173 Numbers k such that 3 and 7 occur juxtaposed in the base-8 representation of k but not of k-1.

31, 59, 95, 123, 159, 187, 223, 248, 287, 315, 351, 379, 415, 443, 472, 507, 543, 571, 607, 635, 671, 699, 735, 760, 799, 827, 863, 891, 927, 955, 984, 1019, 1055, 1083, 1119, 1147, 1183, 1211, 1247, 1272, 1311, 1339, 1375

Offset

1,1

Links

Table of n, a(n) for n=1..43.

Crossrefs

Cf. A007094.

Sequence in context: A061251 A166604 A039350 * A043953 A327447 A139954

Adjacent sequences: A043170 A043171 A043172 * A043174 A043175 A043176

Keyword

nonn,base

Author

Clark Kimberling

Status

approved