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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A067867 Numbers n such that n and 2^n end with the same 4 digits. 0
8736, 18736, 28736, 38736, 48736, 58736, 68736, 78736, 88736, 98736, 108736, 118736, 128736, 138736, 148736, 158736, 168736, 178736, 188736, 198736, 208736, 218736, 228736, 238736, 248736, 258736, 268736, 278736, 288736, 298736, 308736 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..31.

Tanya Khovanova, Recursive Sequences

Index entries for linear recurrences with constant coefficients, signature (2,-1).

FORMULA

a(n) = 8736 + 10^4(n-1).

a(n) = 2*a(n-1)-a(n-2). G.f.: 16*x*(546+79*x)/(1-x)^2. [Colin Barker, Dec 01 2012]

PROG

(PARI) isok(n) = (2^n - n) % 10000 == 0; \\ Michel Marcus, Nov 23 2013

CROSSREFS

Cf. A064541.

Subsequence of A067844, A067845 and A067846.

Sequence in context: A165630 A250999 A214171 * A234734 A250881 A234707

Adjacent sequences:  A067864 A067865 A067866 * A067868 A067869 A067870

KEYWORD

easy,nonn,base

AUTHOR

Benoit Cloitre, Mar 07 2002

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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified April 30 22:37 EDT 2017. Contains 285691 sequences.