Question 1
What is the next term in this alternating sequence: 1, 4, 5, 12, 9, 36, 13, 108, ?
Two interleaved sequences:
- Sequence A: 1, 5, 9, 13, 17 (add 4 each time)
- Sequence B: 4, 12, 36, 108, 324 (multiply by 3 each time)
Next term is from Sequence B: 324
- Sequence A: 1, 5, 9, 13, 17 (add 4 each time)
- Sequence B: 4, 12, 36, 108, 324 (multiply by 3 each time)
Next term is from Sequence B: 324