Find the next term in each sequence below, replacing the underscores. Then, replace each of the found integers with the corresponding letter of the alphabet (A = 1, B = 2, etc.). The letters, in order, form a five-letter word.

128, 64, 32, 16, 8, 4, ___
-3, 0, 3, 6, 9, 12, ___
3, 4, 6, 8, 12, ___
1, 2, 3, 5, 8, 13, ___
110, 109, 105, 96, 80, 55, ___

S1: descending powers of 2 so --> 2 = B

S2: increment by three so --> 15 = O

S3: primes + 1 so --> 13+1 = 14 = N

S4: Fibonacci sequence so --> 21 = U

S5: subtract next square = 55 - 36 = 19 = S

So: BONUS (some formula for BOGUS??)