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Old 10-30-2014   #1
Dragonballful23

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Find the next two number in the following sequence:

1,2,3,5,8,13,21,...


1,4,9,16,25,36,49,...
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Old 10-31-2014   #2
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Quote:
Originally Posted by Dragonballful23 View Post
Find the next two number in the following sequence:

1,2,3,5,8,13,21,...


1,4,9,16,25,36,49,...

Oh, I love those sequences which are usually in every IQ-Test.

1,2,3,5,8,13,21,34,55

This is the Fibonacci-Sequence which always adds the last 2 numbers in every step.

1,4,9,16,25,36,49,64,81

These are the natural numbers, but squared.


So here I bring 2 new ones, which are the next 2 numbers?

65536, 256,...

5, 6, 12, 9, 10, 20, 17,...
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Old 11-01-2014   #3
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Quote:
Originally Posted by Dragonballful23 View Post
Find the next two number in the following sequence:

1,2,3,5,8,13,21,...


1,4,9,16,25,36,49,...
First Sequence: 34 and 55

Second Sequence: 64 and 81
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Old 11-10-2014   #4
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Quote:
Originally Posted by Jonathan W View Post
First Sequence: 34 and 55

Second Sequence: 64 and 81
Correct! And also, welcome back!
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Old 11-12-2014   #5
MAS1

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Quote:
Originally Posted by Dark88Dragon View Post
Oh, I love those sequences which are usually in every IQ-Test.

So here I bring 2 new ones, which are the next 2 numbers?

65536, 256,...

5, 6, 12, 9, 10, 20, 17,...
65536, 256, 16, 4, The next number in the sequence is found by taking the square root of the previous number.

5, 6, 12, 9, 10, 20, 17, 18, 36, 33, ... The pattern for this sequence is add 1, multiply by 2, and subtract 3.
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Old 11-12-2014   #6
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Quote:
Originally Posted by MAS1 View Post
65536, 256, 16, 4, The next number in the sequence is found by taking the square root of the previous number.

5, 6, 12, 9, 10, 20, 17, 18, 36, 33, ... The pattern for this sequence is add 1, multiply by 2, and subtract 3.
Yes, you are totally right. In the first sequence you could have also choose a few other options like:

65536,256,1,1/256 or
65536,256,-65024,-130304 or
2^16,2^8,2^4,2^2 or
2^16,2^8,2^0,2^-8

due to the fact that I showed only the first 2 numbers.
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Old 11-12-2014   #7
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Since this thread is about sequences, I guess i will create more. Find the next 2 numbers for this one: 1,2,3,9,10,11,12,18. For this one find the 99th term in the sequence. 1,5,25,20,100,500,495
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