Descending order

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A sequence $a$ is in descending order if each $a(n)\geq a(n+1)$ (save the last in the case of a finite sequence). There should be at least one instance of $a(n)>a(n+1)$. For example, the sequence of "serial sevens" (100, 93, 86, 79, 72, 65, ..., see A115020) is in descending order.

See also: ascending order, growth of sequences.