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An Odd Pyramid (
Posted on 20031014
)
Consider the numerical pyramid below, formed by simply putting down the series of odd numbers into a pyramid.
1 3 5 7 9 11 13 15 17 19 . . .
Find a formula for the sum of the numbers in the nth row, and prove it.
See The Solution
Submitted by
DJ
Rating:
4.1667
(12 votes)
Comments: (
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)
Subject
Author
Date
Alternative Methodology
K Sengupta
20071122 04:57:21
Puzzle Solution
K Sengupta
20071026 05:42:44
Lots of Sequences
Nathan Hirtz
20041207 07:53:30
Probably not that original
DrBob
20031019 12:04:53
Solution
Abhishek
20031019 09:30:00
re: sk, i dnt understand quite what u r getting at
SilverKnight
20031017 14:52:43
sk, i dnt understand quite what u r getting at
anand
20031017 14:31:01
re: re my solution
SilverKnight
20031017 09:31:58
re my solution
anand
20031017 04:21:07
re: u dont need a hammer to crack a nut
SilverKnight
20031016 17:08:32
re(4): solution (Well done)
SilverKnight
20031016 09:33:10
Solution
retiarius
20031016 05:13:03
u dont need a hammer to crack a nut
anand
20031016 04:56:04
here is a solution
anand
20031016 04:54:24
re(3): solution (Well done)
ratsnstuff
20031016 02:43:07
Triangular numbers everywhere
Federico Kereki
20031015 09:20:23
re: Solution
ethan
20031014 16:29:21
Solution
ethan
20031014 16:27:24
re(2): solution
SilverKnight
20031014 14:35:35
re: solution
Charlie
20031014 14:17:41
solution
SilverKnight
20031014 13:01:16
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