Near-periodic Monotonic Characteristic Series

SPECIES

Near-periodic monotonic characteristic series of natural numbers (starting from 2)

\displaystyle \sum_{n\geq2} \chi(n) = \displaystyle \sum_{\substack{n\geq 1 \\ 1 \text{ shift}}} 1 = -\dfrac{3}{2}   (unstable)

0+1+1+1+1+1+1+1+1+\cdots = -\dfrac{3}{2}   (unstable)

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