OFFSET
1,2
EXAMPLE
a(5) = 13 because 13 is the smallest positive integer m, m > a(4) = 8, such that (1 + 2 + 4 + 8 + m) divides 1 * 2 * 4 * 8 * m * (1 + 1/2 + 1/4 + 1/8 + 1/m).
CROSSREFS
KEYWORD
nonn
AUTHOR
Leroy Quet, Dec 12 2000
STATUS
approved