OFFSET
1,1
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..10000
EXAMPLE
n=25: a(25) = lcm(97-1, 101-1) = lcm(96,100) = 2400.
MATHEMATICA
f[x_] := Prime[x]-1; Table[LCM[f[w+1], f[w]], {w, 1, 128}]
PROG
(PARI) a(n) = lcm(prime(n+1)-1, prime(n)-1); \\ Michel Marcus, Mar 15 2018
CROSSREFS
KEYWORD
nonn
AUTHOR
Labos Elemer, May 22 2003
STATUS
approved