OFFSET
1,2
FORMULA
a(n) = lcm(seq(denominator(a(n, m)), m=1..n)) with the a(n, m) formula given in A089515(n, m) but without the D(n) factor in front and lcm denotes the least common multiple of a set of numbers.
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Wolfdieter Lang, Dec 01 2003
STATUS
approved