However, it is a bit difficult for this problem to appear in primary schools. Find the rules from the odd and even numbers in the arrangement.

One, three two numbers: 1× 20+4 = 24 two numbers: 2× 20+6 = 46 three, five two numbers: 3× 24+8 = 80.

Four, six two numbers: 4× 46+ 10 = 194 Note: The numbers added each time are continuous even numbers. The answer is for reference only.