Can someone verify the gain of this op amp circuit?

The frequencies I will be testing the circuit at are 1, 10, 100 and 500 Hz.

I would like to know the method and values of the theoretical gain.

The circuit diagram is in the attachment.

Values are

R14 = 3570

R15 = 57600

R16 = 2320

R17 = 59000

C3 = 0.000000033 Farads

C4 = 0.000001 Farads

L1 = 6 Henries

The frequencies I will be testing the circuit at are 1, 10, 100 and 500 Hz.

I would like to know the method and values of the theoretical gain.

The circuit diagram is in the attachment.

Values are

R14 = 3570

R15 = 57600

R16 = 2320

R17 = 59000

C3 = 0.000000033 Farads

C4 = 0.000001 Farads

L1 = 6 Henries