Need help in my O1, there is something wrong with can you help please?

. Design a simple combinational circuit which calculates the result of the function F(n) = 5n + 3, where n is any 2-bit unsigned integer. In designing the circuit, draw a truth table, derive expressions for each of the outputs, and draw the circuit. You must show the process. You should not need a K-map. You must use Logisim to draw the circuit.

n	n1 n0	F(n)	O4	O3	O2	O1	O0
0	0 0	3	0	0	0	1	1
1	0 1	8	0	1	0	0	0
2	1 0	13	0	1	1	0	1
3	1 1	18	1	0	0	1	0

O0 = n0

O1 = n1n0 + n1n0

O2 = n1n0

O3 = (n1 + n0) (xor)

O4 = n1 n0