4,8,28,80,244,? number serires
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it is very easy:-
3^1+1=4
3^2-1=8
3^3+1=28
3^4-1=80
3^5+1=244
3^6-1=728
3^7+1=2188
and so on.......................!!
3^1+1=4
3^2-1=8
3^3+1=28
3^4-1=80
3^5+1=244
3^6-1=728
3^7+1=2188
and so on.......................!!
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