Few code standards. Remove composer vendor folder

solutions/other/sequence.php

@@ -0,0 +1,15 @@
+<?php
+
+$num = 44;
+
+for($i=0; $i<20; $i++)
+{
+    $sum = 0;
+    $number = (string)$num;
+    for($c=0; $c < strlen($number);$c++)
+    {
+        $sum +=(int)$number[$c] * (int)$number[$c];
+    }
+    echo $sum . PHP_EOL;
+    $num = $sum;
+}