Motzkin numbers: Difference between revisions

=={{header|F_Sharp|F#}}==

<lang fsharp>

let M=let rec fN g=seq{yield List.item 1 g; yield! fN(0L::(g|>List.windowed 3|>List.map(List.sum))@[0L;0L])} in fN [0L;1L;0L;0L]

M|>Seq.take 42|>Seq.iter(printfn "%d")

192137918101841817

</pre>

=={{header|Factor}}==

{{works with|Factor|0.99 2021-06-02}}