A092197 - OEIS

%I #8 Feb 17 2019 18:31:21

%S 0,0,0,2,0,0,0,0,3,0,0,0,0,2,0,0,0,0,3,0,0,0,0,2,0,0,0,0,3,0,0,0,0,2,

%T 0,0,0,0,3,2,2,2,2,4,2,2,2,2,5,0,0,0,0,2,0,0,0,0,3,0,0,0,0,2,0,0,0,0,

%U 3,0,0,0,0,2,0,0,0,0,3,0,0,0,0,2,0,0,0,0,3,3,3,3,3,5,3,3,3,3,6,0,0,0,0,2,0

%N Brevity advantage of "new style" over "old style" Roman numerals.

%H Nathaniel Johnston, <a href="/A092197/b092197.txt">Table of n, a(n) for n = 1..3999</a>

%F a(n) = A092196(n) - A006968(n).

%e a(4)=2 because old style takes four letters (IIII) versus new style's two (IV).

%p A092197 := proc(n) return length(convert(n, roman, period=early)) - length(convert(n, roman)): end: seq(A092197(n),n=1..105); # _Nathaniel Johnston_, May 18 2011

%Y Cf. A006968, A092196.

%K base,easy,nonn

%O 1,4

%A _Marc LeBrun_, Feb 24 2004