A043990 Numbers k such that 5 and 6 occur juxtaposed in the base-9 representation of k but not of k+1.

51, 59, 132, 140, 213, 221, 294, 302, 375, 383, 456, 467, 539, 545, 618, 626, 699, 707, 780, 788, 861, 869, 942, 950, 1023, 1031, 1104, 1112, 1185, 1196, 1268, 1274, 1347, 1355, 1428, 1436, 1509, 1517, 1590, 1598, 1671, 1679

Offset

1,1

Links

Table of n, a(n) for n=1..42.

Crossrefs

Cf. A007095.

Sequence in context: A308766 A039387 A043210 * A297829 A045068 A050701

Adjacent sequences: A043987 A043988 A043989 * A043991 A043992 A043993

Keyword

nonn,base

Author

Clark Kimberling

Status

approved