A special number
C_K_Yang liuguangxi mafia Burloq medialuna eulerscheZahl Akorlith Min_25 smutley Philippe_57721 gerrob zilet hallvabo sinan caveman666 benito255 lesnik7 R2D2 djcomidi Caesum Buri teebee dloser jablonskim nielkh elasolova
Public  05/25/14  4xp  Programming  35.7% 
Find the biggest number whose any 4 consecutive digits sum to a square number and whose any decimal digit is not used more than 5 times.
For example 522007 is such a number: 5+2+2+0=9, 2+2+0+0=4, 2+0+0+7=9
For example 522007 is such a number: 5+2+2+0=9, 2+2+0+0=4, 2+0+0+7=9
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