login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A233027 a(n) is number of nonnegative integers not exceeding n which have no decimal digits occurring in n and respectively prime to n. 2
0, 0, 1, 2, 2, 4, 2, 6, 4, 6, 3, 8, 2, 7, 3, 4, 4, 7, 2, 7, 8, 3, 9, 15, 7, 14, 9, 10, 9, 15, 6, 15, 8, 16, 11, 17, 8, 23, 11, 15, 16, 23, 8, 23, 18, 18, 19, 31, 13, 27, 20, 19, 14, 31, 10, 36, 17, 24, 19, 39, 16, 39, 24, 22, 25, 33, 18, 47, 28, 31, 18, 47, 15 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

Peter J. C. Moses, Table of n, a(n) for n = 0..9999

EXAMPLE

Let n=12. Numbers which are prime to 12 are 1,5,7,11. However, 1 and 11 are not acceptable by the condition. So, a(12)=2.

CROSSREFS

Cf. A000010, A232897.

Sequence in context: A126606 A285699 A278229 * A262550 A077651 A004085

Adjacent sequences:  A233024 A233025 A233026 * A233028 A233029 A233030

KEYWORD

nonn,base

AUTHOR

Vladimir Shevelev, Dec 03 2013

EXTENSIONS

More terms from Peter J. C. Moses

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 June 5 12:47 EDT 2020. Contains 334840 sequences. (Running on oeis4.)