Multiple choice general knowledge math & puzzles

Find the odd man out: 2, 5, 10, 17, 26, 37, 50, 64

  1. 50

  2. 26

  3. 37

  4. 64

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Pattern is n²+1: 1²+1=2, 2²+1=5, 3²+1=10, 4²+1=17, 5²+1=26, 6²+1=37, 7²+1=50, 8²+1=65. 64 is 8² (not 8²+1), breaking the n²+1 pattern. 64 is wrong.