Best Answer

The simplest formula is:

t(n) = 2n + 5 for n = 1, 2, 3, ...

However, that is not the only formula; there are infinitely many polynomial formulae that can be found that give those five terms first, but for the 6th or further terms vary.

Q: What is the nth term form 7 9 11 13 15?

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(2n-1)(-1)n

14+9n

[ 25 - 6n ] is.

The 'n'th term is [ 13 + 5n ].

It is: 5n+3 and so the next term is 28

Related questions

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,...)