Generate 8 Character Alphanumeric Sequence

Requirements
•ALPHANUMERIC FORMAT – > AA00AA00………..ZZ99ZZ99
Last 8 bytes will alternate between 2 byte alpha/2 byte numeric
•Generate from Alphabets – A through Z Numbers -0 to 9
•Generate Unique Sequence (No Duplicates).
•Must Eliminate letters I and O
Output Expected
•AA00AA00………..ZZ99ZZ99
•Using 24 alphabets & 10 digits ,
24*24*10*10*24*24 = 3 317 760 000 records

Below is my Sql Function -

CREATE function [dbo].[SequenceComplexNEW]
(
@Id BIGINT
)
Returns char(8)
AS
BEGIN
DECLARE @OUT AS CHAR(8)--,@Id as Bigint

[Code] ....