OFFSET
0,2
COMMENTS
FORMULA
a(n) = numerator(8*n/(n+4)), n >= 0.
a(n) = 8*n/gcd(n+4,8*n) = 8*n/gcd(n+4,32), n >= 0.
EXAMPLE
The rationals H(n,4) begin: 0, 8/5, 8/3, 24/7, 4, 40/9, 24/5, 56/11, 16/3, 72/13, 40/7, 88/15, 6, 104/17, 56/9, 120/19, ...
CROSSREFS
KEYWORD
nonn,frac,easy
AUTHOR
Wolfdieter Lang, Jul 01 2013
STATUS
approved