RosettaCodeData/Task/Left-factorials/PicoLisp/left-factorials-1.l
2015-11-18 06:14:39 +00:00

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Text

(de n! (N)
(cache '(NIL) N
(if (> 2 N) 1
(* N (n! (dec N))))))
(de !n (Num)
(if (= Num 0) 1
(sum n! (range 0 (dec Num)))))
(de pril (List) (mapcar 'println List))
(prinl "0-10")
(pril (mapcar '!n (range 0 10)))
(prinl "20 - 110")
(pril (mapcar '!n (range 20 110 10)))
(prinl "length of 1000 - 10000")
(pril (mapcar 'length (mapcar '!n (range 1000 10000 1000))))