OFFSET
1,3
PROG
(PARI) a(n) = my(v = vector(n+1, j, binomial(n, j-1))); prod(k=1, #v, v[k])/ lcm(v); \\ Michel Marcus, Jul 29 2017
CROSSREFS
KEYWORD
nonn
AUTHOR
Labos Elemer, Mar 10 2004
STATUS
approved