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Consider the sequence of number [n+sqrt(...

Consider the sequence of number `[n+sqrt(2n)+1/2]` for `n ge 1` where `[.]` means GIF. If missing `Z^+` in sequence are
`n_1 lt n_2 lt n_3 lt . . . ` find `n_(12)`

A

29

B

5

C

78

D

none of these

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