login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A125363 Number of base 26 circular n-digit numbers with adjacent digits differing by 4 or less. 0
1, 26, 214, 1406, 10814, 84426, 675262, 5474306, 44862014, 370667774, 3082741374, 25775117966, 216460107326, 1824572346350, 15427938607960, 130804716210096, 1111599418378734, 9465652381274166, 80745664149260704 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

[Empirical] a(base,n)=a(base-1,n)+A025014(n+1) for base>=4.int(n/2)+1

LINKS

Table of n, a(n) for n=0..18.

PROG

(S/R) stvar $[N]:(0..M-1) init $[]:=0 asgn $[]->{*} kill +[i in 0..N-1](($[i]`-$[(i+1)mod N]`>4)+($[(i+1)mod N]`-$[i]`>4))

CROSSREFS

Sequence in context: A100242 A042310 A213123 * A126521 A242262 A241938

Adjacent sequences:  A125360 A125361 A125362 * A125364 A125365 A125366

KEYWORD

nonn,base

AUTHOR

R. H. Hardin, Dec 28 2006

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 24 01:46 EDT 2022. Contains 353993 sequences. (Running on oeis4.)