Looking for If Formula

[spycein]

Hello Everyone,
I have the following table

Column A	Column B
No. of Days	Value

<tbody>
</tbody>

I am looking for a formula in "Column B" which would return the value as per below condition.

Count Of Days	Value
1	0
2	0
3	0
4	1
5	1
6	1
7	1
8	2
9	2
10	2
11	2
12	3

<tbody>
</tbody>

Thank you so much in advance.

Best Regards,
Shib

 

[AlanY]

in B2

=LOOKUP(A2,{0;4;8;12},{0;1;2;3})