Safe Cracker Number Blitz

Random Miscellaneous or blitz Quiz

Can you name the following numbers in these sequences?

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Also try: Begins with 'TRI'
Challenge
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Score 0/51 Timer 01:00
Subtracting 1?
 
 
 
 
 
 
 
 
 
 
Doubling?
 
 
 
 
 
 
 
 
 
 
Adding 19?
 
 
 
 
 
 
 
 
 
 
Fibonacci Numbers?
 
 
 
 
 
 
 
 
 
 
Perfect Squares?
 
 
 
 
 
 
 
 
 
 
The Final Question...?
 

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