|
Search: id:A125392
|
|
|
| A125392 |
|
Number of base 29 circular n-digit numbers with adjacent digits differing by 5 or less. |
|
+0
1
|
|
| 1, 29, 289, 2309, 21589, 205179, 1997281, 19709719, 196617709, 1977552257, 20020401099, 203757946817, 2082804406009, 21367854312015, 219889215141535, 2268702606960279, 23459451945944285, 243045973961195761
(list; graph; listen)
|
|
|
OFFSET
|
0,2
|
|
|
COMMENT
|
[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
|
|
PROGRAM
|
(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: A142905 A124310 A101380 this_sequence A126550 A142380 A042632
Adjacent sequences: A125389 A125390 A125391 this_sequence A125393 A125394 A125395
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Ron Hardin (rhh(AT)cadence.com), Dec 28 2006
|
|
|
Search completed in 0.002 seconds
|
