tnessff
ten, nine, eight, seven, six, five, four
64. It's the sequence f(n) = n^3
The next letter should be N, following the sequence E I L N.
k... for king think deck of cards
N (First, Second, Third, Fourth, Fifth, Sixth, Seventh, Eighth, Ninth)
A
The letter N. It represents 1 2 3 4 5 6 7 8....9.
e
E
h
S eventy E ighty N inety
One Two Three Four Five Six Seven Eight The next letter is N! (Nine)
ottffssen The question asked for the next 2 letters.... ottffse-n-t One, Two, Three, Four, Five, Six, Seven, Eight - Nine - Ten