[seqfan] Re: Can anyone explain A206159?

Frank Adams-watters franktaw at netscape.net
Tue May 3 00:30:31 CEST 2022

I don't know if this helps, but the comment "apparently 1, 121 and 1111 are the only nonprime terms" is wrong as well.

The more fundamental sequence A095048 appears to be correct.


I'm baffled, too.

Franklin T. Adams-Watters

-----Original Message-----
From: Neil Sloane <njasloane at gmail.com>
To: Sequence Fanatics Discussion list <seqfan at list.seqfan.eu>
Cc: Harvey P. Dale <hpd at hpdale.org>
Sent: Mon, May 2, 2022 4:32 pm
Subject: [seqfan] Can anyone explain A206159?

Harvey Dale just asked me why the numbers 2, 3, 5, 7, 22, 55, and 77 (and
lots of others)  are missing, and I am baffled.

Best regards

Neil J. A. Sloane, Chairman, OEIS Foundation.
Also Visiting Scientist, Math. Dept., Rutgers University,
Email: njasloane at gmail.com

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