lucas-numbers/lucas-01a.p6

sub lucas($nth) {
    given $nth {
        when 0 { 2 }
        when 1 { 1 }
        default { lucas($nth - 1) + lucas($nth - 2) }
    }
}

for ^10 -> $n { say lucas($n) }

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lucas-numbers/lucas-01a.p6

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