login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A085938 a(n) is the (n+1)-digit number in which the first digit is 1 and the subsequent digits increase by steps of n (mod 10). 0
12, 135, 1470, 15937, 161616, 1739517, 18529630, 197531975, 1098765432, 11111111111, 123456789012, 1357913579135, 14703692581470, 159371593715937, 1616161616161616, 17395173951739517, 185296307418529630 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..16.

EXAMPLE

a(4) = 15937, 5 = 1+4, 9 = 5+4, 9+4 = 13 gives the next digit 3, 3+4 = 7 is the least significant digit.

PROG

(PARI) a(n) = sum(i = 0, n, (1 + i*n)%10*10^(n - i)) (Wasserman)

CROSSREFS

Sequence in context: A208440 A218762 A199233 * A161124 A288035 A290474

Adjacent sequences:  A085935 A085936 A085937 * A085939 A085940 A085941

KEYWORD

base,easy,nonn

AUTHOR

Jason Earls and Amarnath Murthy, Jul 14 2003

EXTENSIONS

More terms from David Wasserman, Feb 14 2005

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 21 04:40 EDT 2019. Contains 325189 sequences. (Running on oeis4.)