1,1

Some of the larger entries may only correspond to probable primes.

Table of n, a(n) for n=1..16.

Cf. A000142, A034386, A078744.

Sequence in context: A133893 A101647 A155150 * A087663 A112813 A048018

Adjacent sequences: A078742 A078743 A078744 * A078746 A078747 A078748

more,nonn

Jason Earls (zevi_35711(AT)yahoo.com), Dec 21 2002

One more term from Ryan Propper, Feb 12 2007

approved