A043921 Numbers k such that 1 and 6 occur juxtaposed in the base-7 representation of k but not of k+1.

13, 43, 62, 97, 111, 141, 160, 190, 209, 239, 258, 288, 307, 337, 356, 386, 405, 440, 454, 484, 503, 533, 552, 582, 601, 631, 685, 699, 729, 748, 783, 797, 827, 846, 876, 895, 925, 944, 974, 993, 1023, 1042, 1072, 1091, 1126

Offset

1,1

Links

Table of n, a(n) for n=1..45.

Crossrefs

Cf. A007093.

Sequence in context: A113831 A139494 A043141 * A138686 A264900 A082369

Adjacent sequences: A043918 A043919 A043920 * A043922 A043923 A043924

Keyword

nonn,base

Author

Clark Kimberling

Status

approved