Index and number rules

duynd

New member
Joined
Jan 10, 2021
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1
Dear all

could anybody help me to find next number and rules in this array?
2,3,4,6,6,9,8..

Thanks alot
 

Harry_the_cat

Senior Member
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Mar 16, 2016
Messages
2,359
Could be anything!!
 

Romsek

Senior Member
Joined
Nov 16, 2013
Messages
1,293
This is two interwoven sequences

The values at odd indices are 2 4 6 8, i.e. (k+1)

The value at even indices are 3 6 9, i.e. 3/2 k

where k is the index of the sequence

The next number is at an odd index and thus will be 3/2(8) = 12
 

Romsek

Senior Member
Joined
Nov 16, 2013
Messages
1,293
The next number is at an odd index and thus will be 3/2(8) = 12
This of course should be

The next number is at an even index and will thus be 3/2(8) = 12.

I don't know where my head is at sometimes.
 
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