Probably member

Look at the series
2,6,25,96,285, ?
What number should come next?

Correct result:

a5 =  568


 a0=2 a1=a0 66=2 66=6 a2=a1 55=6 55=25 a3=a2 44=25 44=96 a4=a3 33=96 33=285 a5=a4 22=285 22=568

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