Give the simple formula for the nth term of the following arithmetic sequence. Your answer will be of the form an + b.
12, 16, 20, 24, 28, ...
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The Nth term formula for oblong numbers is N = N(N+1)
The nth term of the sequence is expressed by the formula 8n - 4.
nth term = 5 +8n
The nth term is: 5-6n
Formula for nth termTn = a + (4n - 1) {where a is the first term and n is natural number}