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

 

Logo

Thanks to everyone who made a donation during our annual appeal!
To see the list of donors, or make a donation, see the OEIS Foundation home page.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A190760 Product of digits is divisible by number of digits. 1
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 16, 18, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 32, 34, 36, 38, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 52, 54, 56, 58, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 72, 74, 76, 78, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 92, 94, 96, 98, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 113, 116, 119 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Almost all numbers are in this sequence: there are at least n - 1.125 n^0.95... elements up to n, where the exponent is log(9)/log(10). - Charles R Greathouse IV, May 20 2011

LINKS

Nathaniel Johnston, Table of n, a(n) for n = 1..10000

EXAMPLE

3*8*2 = 48 and 48 is divisible by the number of digits, 3, so 382 is included.

MAPLE

A190760 := proc(n) option remember: local k: if(n=1)then return 0: fi: for k from procname(n-1)+1 do if(mul(d, d=convert(k, base, 10)) mod length(k) = 0)then return k: fi: od: end: seq(A190760(n), n=1..100); # Nathaniel Johnston, May 19 2011

CROSSREFS

Cf. A007954, A055642, A061383.

Sequence in context: A096868 A266351 A206718 * A067036 A119823 A172432

Adjacent sequences:  A190757 A190758 A190759 * A190761 A190762 A190763

KEYWORD

nonn,base,easy

AUTHOR

Kyle Stern, May 18 2011

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 January 17 14:12 EST 2019. Contains 319225 sequences. (Running on oeis4.)