Find the odd man out? 16, 254, 1296, 4096, 10000

The given series 16, 254, 1296, 4096, 10000 follows a pattern that

$24, 44, 64, 84, 104,...$

Hence, the odd man in the series is 4 x 4 x 4 x 4 = 256 not 254.