Finding logical relation between a series of numerical values

[rameshppc]

Hi,

Now i got struck and need your valuable help here.
I need to find the next number of a series of numerical values listed below,

505018
344936
677723
131820
198043
225002
776386
333117
544280
688659
760158
808183
487860
143137
345895
208028
224946
564152
764905
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how do i find the dashed 6 digit 3 numerical values?

 

[rameshppc]

hi experts...
pls help me to get the answer