In the following number series, two numbers have been put within brackets. Select the most appropriate option for these numbers in relation to their inclusion in the series.

0,7, 26, (65), 124, 215, (344), 511

Both the bracketed numbers are incorrect.

0,7, 26, (65), 124, 215, (344), 511

The logic;

0 → \( {1 }^{3 } \)-1

7 → \( {2 }^{3 } \)-1

26 → \( {3 }^{3 } \)-1

(63) → \( {4 }^{3 } \)-1

124 → \( {5 }^{3 } \)-1

215 → \( {6 }^{3 } \)-1

(342) →  \( {7 }^{3 } \)-1

511 → \( {8 }^{3 } \)-1

Thus,

(65) should be 63 and (344) should be 342

Therefore, Both the bracketed numbers are incorrect.