[Avodah] rare Pesach

[Simon Montagu]

On Sun, Apr 13, 2008 at 5:56 PM, Doron Beckerman <beck072 at gmail.com> wrote:

> Anyone know how often Erev Pesach falls on Shabbos in a Shanah Meuberet
> which is a Shemitta year?
>

Assuming that the 3 are completely uncorrelated, you would predict that it
would be about once every 9.1 * (19/7) * 7 ~= 173 years.

A brute force search shows that it is a little rarer than that if my
programming is correct: 3811 times in the whole 689472-year cycle, or about
once every 181 years. The last time was only 98 years ago in 5670 but the
next is a long way off in 6384, iy"h.
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