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

 

Logo

Annual Appeal: Today, Nov 11 2014, is the 4th anniversary of the launch of the new OEIS web site. 70,000 sequences have been added in these four years, all edited by volunteers. Please make a donation (tax deductible in the US) to help keep the OEIS running.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A126546 Number of base 25 n-digit numbers with adjacent digits differing by five or less. 0
1, 25, 245, 2475, 25255, 259127, 2667039, 27499769, 283843569, 2931488329, 30286288971, 312960372023, 3234309867213, 33427353913483, 345492390255623, 3570953641573985, 36909251330677927, 381495392831876277 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

[Empirical] a(base,n)=a(base-1,n)+11^(n-1) for base>=5n-4; a(base,n)=a(base-1,n)+11^(n-1)-2 when base=5n-5

LINKS

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

PROG

(S/R) stvar $[N]:(0..M-1) init $[]:=0 asgn $[]->{*} kill +[i in 0..N-2](($[i]`-$[i+1]`>5)+($[i+1]`-$[i]`>5))

CROSSREFS

Cf. Base 25 differing by four or less A126520, three or less A126493, two or less A126412, one or less A126379.

Sequence in context: A108178 A107943 A125388 * A023073 A022685 A042208

Adjacent sequences:  A126543 A126544 A126545 * A126547 A126548 A126549

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 | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified November 26 16:10 EST 2014. Contains 250079 sequences.