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

0,1

Comments

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

Links

Table of n, a(n) for n=0..72.

Formula

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

Example

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

Mathematica

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

Crossrefs

Sequence in context: A023452 A052036 A304622 * A143473 A055121 A249591

Adjacent sequences: A178911 A178912 A178913 * A178915 A178916 A178917

Keyword

base,easy,nonn

Author

Amarnath Murthy, Jun 23 2010

Status

approved