Lemma
MediumSequences & series
AQuA-RAT train #2378 · Algebra · Sequences & series

The nth term in a certain sequence is defined for positive integer…

The nth term in a certain sequence is defined for positive integer n as 1+(−1)(n(n+1)/2)^2. What is the total of the first 64 terms of this sequence?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #2378

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