F Major 9#11, 1st inversion (A in the bass)
Also written as Fmaj9#11/A.
Notes, from the bass up
A (bass)CEGBF
The same notes as F Major 9#11 (A, C, E, G, B and F), rearranged so A is the lowest note. Use it to move between chords with smaller jumps across the keyboard.