How to calculate 0,9,26,65124, ()

How to calculate 0,9,26,65124, ()

0→9=2×2×2+1
9→26=3×3×3-1
26→65=4×4×4+1
65→124=5×5×5-1
124→?=6×6×6+1
=127
Infer n ^ 3 + (- 1) ^ n, that is, the third power of N plus the nth power of (- 1)