Data commit

Task/Fibonacci-n-step-number-sequences/Elixir/fibonacci-n-step-number-sequences.elixir

@@ -0,0 +1,29 @@
+defmodule RC do
+  def anynacci(start_sequence, count) do
+    n = length(start_sequence)
+    anynacci(Enum.reverse(start_sequence), count-n, n)
+  end
+
+  def anynacci(seq, 0, _), do: Enum.reverse(seq)
+  def anynacci(seq, count, n) do
+    next = Enum.sum(Enum.take(seq, n))
+    anynacci([next|seq], count-1, n)
+  end
+end
+
+IO.inspect RC.anynacci([1,1], 15)
+
+naccis = [ lucus:      [2,1],
+           fibonacci:  [1,1],
+           tribonacci: [1,1,2],
+           tetranacci: [1,1,2,4],
+           pentanacci: [1,1,2,4,8],
+           hexanacci:  [1,1,2,4,8,16],
+           heptanacci: [1,1,2,4,8,16,32],
+           octonacci:  [1,1,2,4,8,16,32,64],
+           nonanacci:  [1,1,2,4,8,16,32,64,128],
+           decanacci:  [1,1,2,4,8,16,32,64,128,256] ]
+Enum.each(naccis, fn {name, list} ->
+  :io.format("~11s: ", [name])
+  IO.inspect RC.anynacci(list, 15)
+end)