A256079 - OEIS

A256079

Increase each (decimal) digit of n by 1, with carry (i.e., '9' becomes '0' and a (further) increment of 1 of the digit to the left).

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76

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

OFFSET

0,2

COMMENTS

Equivalently, add to n the repunit A002275(d) with same number of digits d as n.

See A048379 for the variant without carry, i.e., (cyclic) increase of each digit modulo 10, 0 -> 1 -> ... -> 9 -> 0.

LINKS

Table of n, a(n) for n=0..65.

FORMULA

a(n) = n + A002275(A055642(n)).

a(n) = A048379(n) if n has no digit '9'.

EXAMPLE

a(9) = 9 + 1 = 10, a(10) = 10 + 11 = 21, ..., a(99) = 99 + 11 = 110, a(100) = 100 + 111 = 211, ...

PROG

(PARI) a(n)=n+10^#Str(n)\9

CROSSREFS

Sequence in context: A338840 A068861 A341935 * A216556 A331975 A068860

Adjacent sequences: A256076 A256077 A256078 * A256080 A256081 A256082

KEYWORD

nonn,easy,base

AUTHOR

M. F. Hasler, Mar 21 2015

STATUS

approved