OFFSET
2,2
LINKS
Harvey P. Dale, Table of n, a(n) for n = 2..1000
FORMULA
MATHEMATICA
PrimeOmega[Times@@#-1]&/@Partition[Prime[Range[80]], 2, 1] (* Harvey P. Dale, Nov 22 2014 *)
PROG
(PARI) a(n) = bigomega(prime(n)*prime(n-1) - 1); \\ Michel Marcus, Sep 30 2013
CROSSREFS
KEYWORD
nonn
AUTHOR
EXTENSIONS
Offset set to 2 and a(1) removed by Michel Marcus, Sep 30 2013
STATUS
approved