A178843 Numbers in which the n-th digit is either a divisor or a nonzero multiple of n.

1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 14, 16, 18, 21, 22, 24, 26, 28, 31, 32, 34, 36, 38, 41, 42, 44, 46, 48, 51, 52, 54, 56, 58, 61, 62, 64, 66, 68, 71, 72, 74, 76, 78, 81, 82, 84, 86, 88, 91, 92, 94, 96, 98, 111, 113, 116, 119, 121, 123, 126, 129, 141, 143, 146, 149, 161, 163

Offset: 1

Author

Jeremy Gardiner, Jun 17 2010

Keywords

• base
• easy
• nonn

Examples

			321 is in the sequence because (counting digits from the left) 3 is a multiple of 1, 2 is a multiple of 2, and 1 is a divisor of 3.
		

Crossrefs

Cf. A069570.