#What's the a_n formula for {-1, 1, 9, 45, 237, ...}?

4 messages · Page 1 of 1 (latest)

drowsy veldtBOT
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heavy furnace
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Do you have more terms for that?

cursive nova
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Can't really notice any pattern, even with first and second differences and ratios.
Do you gave more terms, or some context?