A178914 10's complement of nonnegative numbers.

10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 90, 89, 88, 87, 86, 85, 84, 83, 82, 81, 80, 79, 78, 77, 76, 75, 74, 73, 72, 71, 70, 69, 68, 67, 66, 65, 64, 63, 62, 61, 60, 59, 58, 57, 56, 55, 54, 53, 52, 51, 50, 49, 48, 47, 46, 45, 44, 43, 42, 41, 40, 39, 38, 37, 36, 35, 34, 33, 32, 31, 30, 29, 28

Offset: 0

Author

Amarnath Murthy, Jun 23 2010

Keywords

• base
• easy
• nonn

Comments

Apart from the initial a(0) a duplicate of A089186. - R. J. Mathar, Jun 25 2010

Examples

			a(11) = 10's complement of 11 = 89
		

Crossrefs

Cf. A089186.

Programs

Mathematica

Join[{10},Table[10^IntegerLength[n]-n,{n,80}]] (* Harvey P. Dale, Feb 06 2015 *)

Formula

a(n) = 10^k - n where k is the number of digits in n.