Is there any general formula for $$\sum_{i=0}^k {ai+b\choose i}$$ for ${ai+b} \geq i$ and $a \in \mathbb Z$ ?
2026-04-29 09:42:40.1777455760
Is there any general formula for $\sum_{i=0}^k {ai+b\choose i}$ for ${ai+b} \geq i$ and $a \in \mathbb Z$?
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