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!)
A125394 Number of base 31 circular n-digit numbers with adjacent digits differing by 5 or less. 0
1, 31, 311, 2491, 23371, 222781, 2175107, 21527229, 215372643, 2172481855, 22058146721, 225160434299, 2308475903215, 23755239389679, 245216829211791, 2538058380864601, 26330120051697475, 273697415480399349 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

[Empirical] a(base,n)=a(base-1,n)+F(5) for base>=5.int(n/2)+1 and F(d) is the largest coefficient in (1+x+...+x^(2d))^n

LINKS

Table of n, a(n) for n=0..17.

PROG

(S/R) stvar $[N]:(0..M-1) init $[]:=0 asgn $[]->{*} kill +[i in 0..N-1](($[i]`-$[(i+1)mod N]`>5)+($[(i+1)mod N]`-$[i]`>5))

CROSSREFS

Sequence in context: A124335 A042870 A152033 * A200913 A212235 A126552

Adjacent sequences:  A125391 A125392 A125393 * A125395 A125396 A125397

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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 15 23:32 EDT 2020. Contains 335774 sequences. (Running on oeis4.)