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The Series has the formula 3n + 1/2(n - 1)(n - 2) = 3n + 1/2(n2 - 3n + 2)
which simplifies to, 1/2(n2 +3n + 2)
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∙ 11y ago
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What is the nth term formula for the triangle numbers 1 3 6 10 15 21?
(n^2+n)/2
What is the nth term of this sequence 15 9 3 -3 -9?
after -9 it is -15 then -21, -27 and the ninth is -36
What is the nth term and the 10th term of the squence 10 21 34 49?
f = 10n + (n - 1)^2 For n=10 f = 10(10) + (10 - 1)^2 f = 181
What is the Nth term of 25 24 23 22?
Assuming the pattern would continue: 25, 24, 23, 22, 21, 20, 19, 18, 17, 16, 15, 14, 13...
What is the nth term for 21 19 17?
23-2nthis guy has a great way of explaining it, so look at his...What_is_the_nth_term_for_3_7_11_15_19
What is the nth term formula for the triangle numbers 1 3 6 10 15 21?
(n^2+n)/2
What is the nth term of 15 21 27 33 39?
the anser is that you are stupid
What is the nth term of this sequence 15 9 3 -3 -9?
after -9 it is -15 then -21, -27 and the ninth is -36
What is the nth term for 11 21 31 41?
10n + 1
What is the nth term for 1 3 6 10 15 21 28 36 etc?
(1+n) x n/2 or (n + n2)/2
What is the nth term for 15 21 27 33 39?
A single number, such as 1521273339 does not define a sequence. There is no nth term for a signle number.
Can you find the nth term from the pattern 5 12 21 32?
The nth term is n2 + 4n.
The first 6 triangular numbers are?
1, 3, 6, 10, 15 ,21 The nth term for the sequence (where you replace n with the term you want to find) is: (n(n+1))/2
What is the formula for the nth Term of these sequences 13 21 29 37 45 ...?
nth term = 5 +8n
What is the nth term in the sequence 21 17 13 9?
The nth term is 25-4n and so the next term will be 5
What is the nth term and the 10th term of the squence 10 21 34 49?
f = 10n + (n - 1)^2 For n=10 f = 10(10) + (10 - 1)^2 f = 181
What is the nth term 9 13 17 21?
It is 4n+5 and so the next term will be 25
