|
| |
|
|
A356726
|
|
Integers which have in Roman numerals more distinct symbols than any smaller number.
|
|
0
|
| |
|
|
|
OFFSET
|
1,2
|
|
|
COMMENTS
|
Indices of record highs in A057226.
Smallest number whose Roman notation has exactly n distinct symbols.
The sequence is finite because 1444 is the smallest number using the symbols I,V,X,L,C,D,M.
|
|
|
LINKS
|
|
|
|
EXAMPLE
|
For n = 3, a(3) = 14 because 14 = XIV which is the smallest number with 3 symbols in Roman notation.
|
|
|
MATHEMATICA
|
kmax=1500; a={}; n=1; For[k=1, k<=kmax, k++, If[Length[DeleteDuplicates[Characters[RomanNumeral[k]]]] == n, AppendTo[a, k]; n++; k=1]]; a (* Stefano Spezia, Aug 26 2022 *)
|
|
|
CROSSREFS
|
|
|
|
KEYWORD
|
nonn,fini,full,easy
|
|
|
AUTHOR
|
|
|
|
STATUS
|
approved
|
| |
|
|
