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Template:Sequence of the Day for December 25
Intended for: December 25, 2011
Timetable
- First draft entered by Alonso del Arte on May 28, 2011 as a verbatim copy of a write-up from December 25, 2010
- Draft to be reviewed by October 25, 2011
- Draft to be approved by November 25, 2011
Yesterday's SOTD * Tomorrow's SOTD
The line below marks the end of the <noinclude> ... </noinclude> section.
- { 1, 4, 10, 20, 35, 56, 84, 120, 165, 220, 286, 364, ... }
On the first day of Christmas, my true love gave me a partridge in a pear tree. The next day, she gave me two turtle doves and another partridge in a pear tree. And the next day, three French hens, another two turtle doves and yet another partridge in a pear tree. By the seventh day, I had a serious storage problem.
If there was a way to encase all these gifts into small balls with a radius of half a unit, a triangular frame with each side twelve units long would be sufficient to organize all these gifts into a nice, little tetrahedron, since it just so happens that the running total of gifts received each day is a tetrahedral number. But of course the whole issue of storage is moot because the gifts are symbols of various concepts relevant to the celebration of Christmas.
