1,1

Table of n, a(n) for n=1..25.

(PARI) for(n=2, 100, if(bigomega(n!+1)==bigomega(n!-1), print(n)))

Sequence in context: A157291 A107820 A191931 * A271048 A189127 A189288

Adjacent sequences: A064183 A064184 A064185 * A064187 A064188 A064189

more,nonn

Jason Earls, Sep 20 2001

a(15)-a(25) from Donovan Johnson, Mar 09 2008

Offset corrected by Donovan Johnson, Jul 11 2013

approved