Sub intercalle()
Dim tabloinit() As Variant
Dim tabloFinal() As Variant
With ActiveSheet
Fin = .Range("B" & .Rows.Count).End(xlUp).Row
tabloinit = .Range("B10:B" & Fin).Value
ReDim tabloFinal(1 To 3 * UBound(tabloinit, 1), 1 To 1)
For i = LBound(tabloinit, 1) To UBound(tabloinit, 1)
tabloFinal(3 * (i - 1) + 1, 1) = tabloinit(i, 1)
tabloFinal(3 * (i - 1) + 2, 1) = ""
tabloFinal(3 * (i - 1) + 3, 1) = ""
Next i
.Range("C10").Resize(UBound(tabloFinal), 1) = tabloFinal
End With
End Sub