reduce - Clojure: finding sequential items from a sequence -

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in clojure program, have sequence of numbers:

(2 3 4 6 8 1)

i want find longest sub-sequence items sequential:

(2 3 4)

i assuming involve (take-while ...) or (reduce ...).

any ideas?

clarification: need longest initial list of sequential items. easier, i'm sure. solutions more difficult problem posed.

if interested in longest initial sequence, it's 1-liner:

(defn longest-initial-sequence [[x :as s]]   (take-while identity (map #(#{%1} %2) s (iterate inc x))))

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