The next number in the sequence 3-15-6-30-21 is -207.
The next is 3.
The nest number in the sequence is 18. Note that the difference between each number and the next number in the sequence follows the simple sequence of 1,2,3,4. Obviously the next in the sequence of increases is 5, so 13+5=18.
6
10
The next number in the sequence will be 56.
The next number in the sequence 3-15-6-30-21 is -207.
The next is 3.
The nest number in the sequence is 18. Note that the difference between each number and the next number in the sequence follows the simple sequence of 1,2,3,4. Obviously the next in the sequence of increases is 5, so 13+5=18.
19
The next number in the sequence is 18. It's +1, +2, +3, +4, ....
6
96. The sequence is: Multiply by 6. Takeaway 6. Multiply by 5. Takeaway 5. Multiply by 4. Takeaway 4 to give you the next [sought for number] in the sequence.
For an integral sequence the next number is 6 (add 5 subtract 7 pattern).
The pattern appears to be: subtract 6, add 17, subtract 14, add 9, subtract 7. Following this pattern, the next number should be obtained by adding 3 to the last number in the sequence, which is 6. Therefore, the next number in the sequence is 9.
11
10