In the following series of numbers, if all the prime numbers are removed, then how many 6s are followed by an odd number but not preceded by an even number?
7 9 6 5 21 4 8 6 33 6 7 15 3 6 4 27 6 11 25 4 35 6 17 81
3
2
4
3
5
4
6
In the following series of numbers, if all the prime numbers are removed, then how many 6s are followed by an odd number but not preceded by an even number?
7 9 6 5 21 4 8 6 33 6 7 15 3 6 4 27 6 11 25 4 35 6 17 8