Option Explicit
Sub Incrementation()
Dim i As Integer, ii As Integer
Dim L As Integer, C As Integer
ii = Application.InputBox('Nombre Maxi ?', 'Incrémentation Auto', Type:=1)
With ActiveCell
L = .Row
C = .Column
End With
For i = 1 To ii
Cells(L + i - 1, C) = i
Next
End Sub