You must add 3 for all next output number.
Series:
4 33
5 36
6 39
7 42
8 45
9 48
10 51
11 54
12 57
13 60
14 63
15 66
16 69
my daughter came home with input/output table don't understand how to do it
Input Output
4 33
5 36
11 54
16 69
2 answers
OR:
1 24
2 27
3 30
4 33
5 36
6 39
7 42
8 45
9 48
10 51
11 54
12 57
13 60
14 63
15 66
16 69
17 72
18 75 etc
1 24
2 27
3 30
4 33
5 36
6 39
7 42
8 45
9 48
10 51
11 54
12 57
13 60
14 63
15 66
16 69
17 72
18 75 etc