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Simple Sequence (Posted on 2007-05-07) Difficulty: 2 of 5
The sequence:

1, 3, 7, 13, 21, ...

What is the 600th member of the series?

What member, above the first, with fewer than 5 digits, is a perfect cube?

What member is a 5-digit palindrome that can also be read as a binary number?

What's the smaller of the two consecutive members that are 1000 apart?

See The Solution Submitted by Charlie    
Rating: 4.0000 (2 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re: No Subject | Comment 4 of 7 |
(In reply to No Subject by Dej Mar)

I'm not too sure that 343 = 18^3. ;)
  Posted by George on 2007-05-07 21:42:05

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