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+--- Thread: which number best completes the sequence 1 1 3 2 4 6 5 25 (/showthread.php?tid=25063)
which number best completes the sequence 1 1 3 2 4 6 5 25 - Ken Sp. - 12-29-2006
This is baffling--any clues?
which number best completes the sequence 1 1 3 2 4 6 5 25 ?
Re: which number best completes the sequence 1 1 3 2 4 6 5 25 - sscutchen - 12-29-2006
27
Re: which number best completes the sequence 1 1 3 2 4 6 5 25 - Carm - 12-29-2006
1*1=1+2=3-1=2*2=4+2=6-1=5*5=25+2=27-1=26x26=
Re: which number best completes the sequence 1 1 3 2 4 6 5 25 - threeprong - 12-29-2006
...
Re: which number best completes the sequence 1 1 3 2 4 6 5 25 - Carm - 12-29-2006
*=X=multiply. I was working on it.
First post got it along with me. I was just extending the pattern.
27-1=26x26
Carm
Re: which number best completes the sequence 1 1 3 2 4 6 5 25 - wurm - 12-29-2006
30
Think of the sequence as 1 1 3, 2 4 6, 5 25 ?
Edited for typo. I should have changed my answer while I was at it.
Re: which number best completes the sequence 1 1 3 2 4 6 5 25 - mikebw - 12-29-2006
Start with 1; square; add 2; subtract 1; repeat.
1, 1, 3, 2, 4, 6, 5, 25, 27, 26, 676, 678, 677, 458329, 458331, 458330, 210066388900, 210066388902, 210066388901, 44127887745906175987801, 44127887745906175987803, 44127887745906175987802
Re: which number best completes the sequence 1 1 3 2 4 6 5 25 - birdmanjeff - 12-29-2006
[quote Carm]1*1=1+2=3-1=2*2=4+2=6-1=5*5=25+2=27-1=26x26=
Beat me to it, I agree, it is a tough one.
Re: which number best completes the sequence 1 1 3 2 4 6 5 25 - Carm - 12-29-2006
Thanks mikebw for listing it, I was looking for that freaking square symbol on my keyboard.
Carm
Re: which number best completes the sequence 1 1 3 2 4 6 5 25 - Ken Sp. - 12-29-2006
Thanks for the quick answers--I have 2 more out of many-I get most of these--but not these
More number sequences
3 9 4 5 25 20 21 441 ?
2 6 3 8 6 12 ?
Thanks