|
Search: id:A124952
|
|
|
| A124952 |
|
Number of base 24 circular n-digit numbers with adjacent digits differing by 2 or less. |
|
+0
1
|
|
| 1, 24, 114, 426, 1862, 8194, 36996, 169088, 781022, 3635922, 17034404, 80221088, 379426784, 1801177896, 8577255542, 40956427846, 196033612206, 940269589202, 4518417570036, 21749390784152, 104848429735272, 506137481003552
(list; graph; listen)
|
|
|
OFFSET
|
0,2
|
|
|
COMMENT
|
[Empirical] a(base,n)=a(base-1,n)+A005191(n+1) for base>=2.int(n/2)+1
|
|
PROGRAM
|
(S/R) stvar $[N]:(0..M-1) init $[]:=0 asgn $[]->{*} kill +[i in 0..N-1](($[i]`-$[(i+1)mod N]`>2)+($[(i+1)mod N]`-$[i]`>2))
|
|
CROSSREFS
|
Sequence in context: A162451 A064595 A064591 this_sequence A126411 A137799 A114200
Adjacent sequences: A124949 A124950 A124951 this_sequence A124953 A124954 A124955
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Ron Hardin (rhhardin(AT)att.net), Dec 28 2006
|
|
|
Search completed in 0.002 seconds
|
