Asked by Will

What is the pattern for 3, 19, 99, 499, 2499
Answered by Reiny
3 = 4(5^0) - 1
19 = 4(5^1) - 1
99 = 4(5^2) - 1
499 = 4(5^3) - 1
2499 = 4(5^4) - 1

mmmh?
Answered by Mr Waffles
Answer is Mr Waffles
Answered by Anonymous
tell me!
Answered by Ggggggg
Ghbov
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