Anonymous user
Lah numbers: Difference between revisions
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→{{header|zkl}}: tweak
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m (→{{header|zkl}}: tweak) |
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Line 354:
=={{header|zkl}}==
<lang zkl>fcn lah(n,k,fact=fcn(n){ [1..n].reduce('*,1) }){
if(n==
if(
if(n<1 or k
(fact(n)*fact(n - 1)) /(fact(k)*fact(k - 1)) /fact(n - k)
}</lang>
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