Another Hanukkah Miracle: The Gaps Between Consecutive Christmas-in-Hanukkah Years is ALWAYS a Fibonacci Number!

Another Hanukkah Miracle: The Gaps Between Consecutive Christmas-in-Hanukkah Years is ALWAYS a Fibonacci Number!

By
Shalosh B. Ekhad
.pdf .ps .tex

(Exclusively published in the Personal Journal of Shalosh B. Ekhad and Doron Zeilberger and arxiv.org)
First Written: Jan. 2, 2012.
Last Update (of this webpage, not of article): Feb. 23, 2012.

In fond memory of Marvin Isadore KNOPP (1933-2011) one of the nicest, kindest, and wisest people whom we ever knew.
Jane Deborah LEGRANGE, asked her husband, who asked the author of this article, how often does it happen that Christmas happens to fall in Hanukkah. This article answers this profound question.
Added Feb. 23, 2012: Read Stephen S. Miller's insightful message

Maple Packages

LUACH A Maple package for computing Hebrew Dates of Gregorian dates and vice versa, and does lots of other good stuff as well.

Web-books

If you want to see all the years between 1801 and 20000 where Christmas happens to be in Hanukkah, the the
input file would yield the output file

If you want to see all the years between 1801 and 20000 where Christmas happens to be in Sukkot, the the
input file would yield the output file

Personal Journal of Shalosh B. Ekhad and Doron Zeilberger
Doron Zeilberger's Home Page