|
| |
|
|
A080910
|
|
Number of numbers that differ from n in decimal representation by exactly one edit-operation: deletion, insertion, or substitution.
|
|
4
|
|
|
|
18, 27, 27, 27, 27, 27, 27, 27, 27, 27, 46, 45, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 45, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 45, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 45, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 45, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 45, 46, 46
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
0,1
|
|
|
COMMENTS
|
a(n) = #{i: LevenshteinDistance(n,i)=1}.
|
|
|
LINKS
|
Table of n, a(n) for n=0..68.
Michael Gilleland, Levenshtein Distance. [It has been suggested that this algorithm gives incorrect results sometimes. - N. J. A. Sloane]
|
|
|
EXAMPLE
|
n=42: numbers at Levenshtein distance 1 from 42: {2, 4, 12, 22, 32, 40, 41, 43, 44, 45, 46, 47, 48, 49, 52, 62, 72, 82, 92, 142, 242, 342, 402, 412, 420, 421, 422, 423, 424, 425, 426, 427, 428, 429, 432, 442, 452, 462, 472, 482, 492, 542, 642, 742, 842, 942}, therefore a(42)=46.
|
|
|
CROSSREFS
|
Sequence in context: A338383 A338385 A220100 * A347826 A036763 A226971
Adjacent sequences: A080907 A080908 A080909 * A080911 A080912 A080913
|
|
|
KEYWORD
|
nonn,base
|
|
|
AUTHOR
|
Reinhard Zumkeller, Apr 01 2003
|
|
|
STATUS
|
approved
|
| |
|
|
