Answer / khelan

1^3-1=0
2^3-1=7
3^3-1=26
4^3-1=63
5^3-1=124
6^3-1=215

Answer / harshgandhi126

0 + [(1*6)+1] = 7 + [(3*6)+1] = 26 + [(6*6)+1] = 63 +
[(10*6)+1] = 124 + [(15*6)+1] = 215

Answer / shantha meena

215.

Answer / kiran

197

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