13
The sequence 14567911 appears to consist of consecutive prime numbers: 2, 3, 5, 7, 11, 13, 17. However, the numbers listed are not all consecutive primes but rather a mix that starts at 1 and skips some primes. The next number in the sequence after 11 would logically be 13, as it is the next prime number.
11 comes next.
The pre-penultimate element of the series.
1204
57
10
The series seems to be "add 3," so the next number in the series would be 12 followed by 15.
The number 7 comes next.
One number does not make a sequence (nor a series).
There is no series after GT yet.
7 then 7 then 5 then 6
T