A122532 Set of all 9-digit numbers in which every pair of adjacent digit is a multiple of either of 2 distinct 2-digit numbers.

923468517, 195763842, 219576384, 384219576, 421957638, 576384219, 638421957, 763842195, 842195763, 957638421

Offset

1,1

Links

Table of n, a(n) for n=1..10.

Puzzleup, Home page

Example

195763842 and all its cyclically shifted versions are multiples of either 19 or 21.
923468517 is formed from 23 or 17 because 92 = 23*4, 34 = 17*2, and so on.

Crossrefs

Sequence in context: A015382 A115385 A186805 * A172605 A015394 A375644

Adjacent sequences: A122529 A122530 A122531 * A122533 A122534 A122535

Keyword

nonn,base

Author

Balakrishnan (bvarada2(AT)jhu.edu), Sep 17 2006

Status

approved