Expand GPU coverage for even perfect candidate tests

PerfectNumbers.Core.Tests/MersennePrimeTestData.cs

@@ -0,0 +1,25 @@
+namespace PerfectNumbers.Core.Tests;
+
+internal static class MersennePrimeTestData
+{
+    public static readonly ulong[] Exponents =
+    {
+        31UL,
+        61UL,
+        89UL,
+        107UL,
+        127UL,
+        521UL,
+        607UL,
+        1279UL,
+        2203UL,
+        2281UL,
+        3217UL,
+        4253UL,
+        4423UL,
+        9689UL,
+        9941UL,
+        11213UL
+    };
+}
+