[seqfan] b-file needed for A000571, a classic sequence

Neil Sloane njasloane at gmail.com
Thu May 10 23:33:36 CEST 2012

Dear Seq Fans,

I just came across an old paper
of John Riordan's, which ostensibly deals with A046919 and A000571.
His goal is to find a formula for A000571.
But I think he made a mistake.
His formula does not give A000571, but what turns out to be a new sequence,
His computation of A046919 seems OK, though, except that when I extended
his numbers a zillion years ago, I made a mistake.
I have just corrected A046919 and added a b-file for it.

This leaves A000571. There is a reasonable-looking formula.
Can someone produce a b-file?

Dear Friends, I will soon be retiring from AT&T. New coordinates:

Neil J. A. Sloane, President, OEIS Foundation
11 South Adelaide Avenue, Highland Park, NJ 08904, USA
Phone: 732 828 6098; home page: http://NeilSloane.com
Email: njasloane at gmail.com

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