Explain this old one...

N. J. A. Sloane njas at research.att.com
Tue May 27 14:40:40 CEST 2003

Let me add that references should always give author, title, place, date.

In this case:

Robert Fludd,
Utriusque Cosmi ... Historia,
Oppenheim, 1617-1619.

It's good to hear from old sequence fanatics!

Like many of us, he had a complicated life: see


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