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Omni-MATH / For positive integers n, let the numbers c(n) be determined by the rules c(1)=1, c(2n)=c(n), and c(2n+1)=(−1)^(n)c(n). Find the value of ∑_(n=1)²⁰¹³c(n)c(n+2). · Discussion

Discussing For positive integers n, let the numbers c(n) be determined by the rules c(1)=1, c(2n)=c(n), and c(2n+1)=(−1)^(n)c(n). Find the value of ∑_(n=1)²⁰¹³c(n)c(n+2). · Omni-MATH

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