(2n-1)(-1)n
[ 25 - 6n ] is.
14+9n
The 'n'th term is [ 13 + 5n ].
It is: 5n+3 and so the next term is 28
This is the Fibonacci sequence, where the number is the sum of the two preceding numbers. The nth term is the (n-1)th term added to (n-2)th term
It is: 2n+9
The nth term is: 2n+7 and so the next number will be 19
2n + 1
The nth term is 2n+5 and so the next number is 17
It is 4n-13 and so the next number will be 11
The sequence is simply achieved by adding 2 to each value9+2=1111+2=1313+2=1515+2=1717+2=1919+2=21so the nth term can be calculatedThe value of the nth term = the value of (nth-1 term) +2.
nth term = 5 +8n
The nth term is: 5-6n
Un = 4n - 13.
The nth term is 3n+7 and so the next number will be 22
The nth term is: 3n+1 and so the next number will be 16
The first differences are 5, 7, 9, 11, 13 and the second differences are 2,2,2,2 so the formula for the nth term is a quadratic. tn = n2 + 2n - 2 (n = 1,2,3,...)