A053878 - OEIS

%I #8 Mar 30 2012 18:51:20

%S 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,7,1,1,1,1,1,1,1,1,1,

%T 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,3,5,1,1,1,1,1,1,1,1,1,4,1,1,4,1,

%U 1,1,1,1,1,1,1,1,1,1,1,1,1,11,13,2,5,11,13,2,1,5,2,1,1,1,1,3,1,1,1,3,1,1,1

%N Difference between numerator and denominator of lowest terms fraction from division of a highly composite number (1) by its predecessor.

%C Successive fractions are 2/1, 2/1, 3/2, 2/1, 2/1, 3/2, 4/3, 5/4, 2/1, 3/2, 4/3, 3/2, 2/1.

%C This sequence is not multiplicative.

%F a(n) = A054483(n)-A054482(n) =(A002182(n)-A002182(n-1))/A054481(n).

%e a(7)=1 since A002182(7)=36, A002182(6)=24, 36/24=3/2 in lowest terms and 3-2=1.

%Y Cf. A002182.

%K nonn

%O 2,25

%A _Henry Bottomley_, Mar 31 2000

%E More terms from _Jud McCranie_, Jun 09 2005