Initial data commit

2023-07-01 11:58:00 -04:00 · 2023-07-01 11:58:00 -04:00 · f23f22d71c
commit f23f22d71c
parent 72d218235f
199087 changed files with 3378941 additions and 0 deletions
--- a/Task/M-bius-function/Raku/m-bius-function.raku
+++ b/Task/M-bius-function/Raku/m-bius-function.raku
@ -0,0 +1,13 @@
+use Prime::Factor;
+
+sub μ (Int \n) {
+    return 0 if n %% (4|9|25|49|121);
+    my @p = prime-factors(n);
+    +@p == +@p.unique ?? +@p %% 2 ?? 1 !! -1 !! 0
+}
+
+my @möbius = lazy flat '', 1, (2..*).hyper.map: &μ;
+
+# The Task
+put "Möbius sequence - First 199 terms:\n",
+    @möbius[^200]».fmt('%3s').batch(20).join: "\n";