This site is supported by donations to The OEIS Foundation.

 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 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: A278849 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 | Style Sheet | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.