|
Search: id:A125377
|
|
|
| A125377 |
|
Number of base 14 circular n-digit numbers with adjacent digits differing by 5 or less. |
|
+0
1
|
|
| 1, 14, 124, 944, 8224, 73164, 663592, 6079164, 56025792, 518098976, 4800482504, 44528550080, 413300021488, 3837488395352, 35638247594192, 331005480808464, 3074553653662208, 28559120705050336, 265287361541008864
(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
|
Adjacent sequences: A125374 A125375 A125376 this_sequence A125378 A125379 A125380
Sequence in context: A022642 A004312 A002056 this_sequence A126535 A041001 A025211
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Ron Hardin (rhh(AT)cadence.com), Dec 28 2006
|
|
|
Search completed in 0.002 seconds
|
