What are the missing numbers in this sequence:
0, __, 2, __, 9, __, 20, __, 26, __, 54, __, 77, __

Sloane's On-Line Encyclopedia of Integer Sequences allows the use of wild cards in searches.  A click on Help there will give info. A single underscore will hold the place of one wildcard number and a double underscore, of any number of missing numbers.

Posted by Charlie on 2007-08-22 09:23:36