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| -rw-r--r-- | challenge-168/habere-et-dispetire/raku/ch-1.raku | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/challenge-168/habere-et-dispetire/raku/ch-1.raku b/challenge-168/habere-et-dispetire/raku/ch-1.raku new file mode 100644 index 0000000000..e2bdcecfaa --- /dev/null +++ b/challenge-168/habere-et-dispetire/raku/ch-1.raku @@ -0,0 +1,11 @@ +#! /usr/bin/env raku + +# Perrin Prime +# https://wikiless.org/wiki/Perrin_number +# https://oeis.org/A074788 + +put (3, 0, 2, -> $n3, $n2, $ { $n3 + $n2 } … ∞) + .grep(*.is-prime) + .unique + .head(13) + .sort; |