A043313 - OEIS

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A043313

a(n)=A033007(n)/10.

1, 2, 3, 4, 5, 6, 7, 8, 81, 83, 84, 85, 86, 87, 88, 89, 162, 163, 165, 166, 167, 168, 169, 170, 243, 244, 245, 247, 248, 249, 250, 251, 324, 325, 326, 327, 329, 330, 331, 332, 405, 406, 407, 408, 409, 411, 412, 413, 486, 487, 488

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

Also: Numbers which, written in base 81, have only digits 0,...,8, and no two adjacent digits equal. - M. F. Hasler, Feb 03 2014

LINKS

Table of n, a(n) for n=1..51.

PROG

(PARI) is_A043313(n)=(n=[n])&&!until(!n[1], ((n=divrem(n[1], 81))[2]<9 && n[1]%9!=n[2])||return) \\ M. F. Hasler, Feb 03 2014

CROSSREFS

Cf. A043307 - A043320, A043291, A033001 - A033014, A033016 - A033029.

Sequence in context: A303167 A024656 A186442 * A171679 A044910 A109752

Adjacent sequences: A043310 A043311 A043312 * A043314 A043315 A043316

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved