|
| |
|
|
A126544
|
|
Number of base 23 n-digit numbers with adjacent digits differing by five or less.
|
|
0
| |
|
|
1, 23, 223, 2233, 22593, 229845, 2344951, 23959555, 244996403, 2506196601, 25642541441, 262394013219, 2685165779179, 27478998106253, 281214182348803, 2877908167110333, 29452244633456589, 301412164854186481
(list; graph; refs; listen; history; 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
|
|
|
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 23 differing by four or less A126518, three or less A126491, two or less A126410, one or less A126377.
Sequence in context: A038514 A125386 A091628 * A206766 A142490 A051819
Adjacent sequences: A126541 A126542 A126543 * A126545 A126546 A126547
|
|
|
KEYWORD
| nonn,base
|
|
|
AUTHOR
| R. H. Hardin (rhhardin(AT)att.net), Dec 28 2006
|
| |
|
|
