Open Excel.
In cell A1, type "1"; in cell A2, type "2". Drag that down to whatever level you want to deal with.
Now, in cell B1, type "0"; in cell B2, type "=sum(A1*1000)+B1". Drag that down to whatever level you want to deal with.
Done.
(BTW: 83,436,000 XP for ECL 409, if my 3E mind hasn't turned to complete crap since I saw the light of 4E).