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R.I.P., J.C. (Posted on 2015-01-02) Difficulty: 2 of 5
200, 519, 442, 212, 201, ?

What is the last number?

See The Solution Submitted by Ady TZIDON    
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possibly | Comment 1 of 4
Not recognizing a pattern in the series, I submit an answer for where a pattern, of a sorts, does exist:

The last number is 500.

200 < 519 > 442   : 2, 4, 6 (ascending even numbers)*  
212 > 201 < 500   : 5, 3, 1 (descending odd numbers)**

*
200 = CC (2 digits); 519 = DXIX (4 digits); 442 = CDXLII (6 digits)

**
212 = CCXII (5 digits); 201 = CCI (3 digits); 500 = D (1 digit) 

  Posted by Dej Mar on 2015-01-02 10:42:23
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