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Spot the Difference (Posted on 2004-09-26) Difficulty: 4 of 5
What is the next number in the sequence?


See The Solution Submitted by Juggler    
Rating: 2.3333 (6 votes)

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re(2): Self Powered SHIFTED | Comment 5 of 9 |
(In reply to re: Self Powered SHIFTED by Ady TZIDON)

You write

"The sequence is (X+1)^(X+1)-X^X "

in reply to Sanjay's

"I believe the next number is 776887

The sequence is (X^X)-((X-1)^(X-1))."

Why? Sanjay's formula is perfectly valid. He just calls X what you call X+1, a trivial difference due to a trivial change of variable. One could perhaps based on esthetics make some case for not writing the formula as (X-1)^(X-1) - (X-2)^(X-2), but there seems me to be no esthetic ground for preferring your formula over Sanjay's.


  Posted by Richard on 2004-09-26 17:27:01
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