OFFSET
1,1
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..968
EXAMPLE
a(8) = 8*7*6 +1 = 337.
MATHEMATICA
Flatten[Table[Select[Rest[FoldList[Times, 1, Range[n, 1, -1]]]+1, PrimeQ, 1]/. {}->{0}, {n, 40}]] (* Harvey P. Dale, Jul 10 2012 *)
PROG
(PARI) f(n, k)=prod(i=n-k, n, i)+1; a(n)=for (i=0, n, if(isprime(f(n, i)), print1(f(n, i)); break()))
CROSSREFS
KEYWORD
nonn
AUTHOR
Amarnath Murthy, Mar 18 2004
EXTENSIONS
More terms from Mohammed Bouayoun (bouyao(AT)wanadoo.fr), Mar 19 2004
STATUS
approved