Comments on: Enigma 1436 - One More Step

By: Doug Davidson

Doug Davidson — Sun, 27 Jan 2008 05:34:44 +0000

11011 Twenty seven in Bianary, Three cubed, Simplified trigonometry math of the heavens. Number of books in the Book. It’s always much more simple than you think it is.

By: Alexis

Alexis — Sat, 28 Apr 2007 22:18:21 +0000

You do know that 1 is a perfect cube too.

I might be wrong but I am almost certain that 1 is a perfect cube.

By: joelbradbury

joelbradbury — Mon, 16 Apr 2007 14:41:13 +0000

You are totally right! How did that slip by.
I originally wrote out the whole thing on paper, realized it was wrong and redid it.

Doh! Must of copied the wrong thing when I was typing it up.
Never mind.

–I’ve changed it now

By: werd

werd — Mon, 16 Apr 2007 10:29:48 +0000

the answers are correct but i don’t think n^2*(n-1) is the pattern simply because:
if n=1 then 1^2*(1-1)=0
n=2 then 2^2*(2-1)=4 and
n=600 then 600^2*(600-1)=215640000

the pattern I have is An=(n-1)n+1
where
if n=1 then (1-1)*1+1=1
n=2 then (2-1)*2+1=3
n=3 then (3-1)*3+1=7 etc

Therefore to get the 600th term, you do (600-1)*600+1=359401

I hope I got my point across.