What comes next?
5, 3, 42, 86, 15, 24, 25, 168, 2, 4, ?
6 could it be
Nope, not 6.
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Good job, Bicycle Tree! You're good.
Is anybody going to explain?
Ok. The sequence is a palindrome.
In that case, 3 would serve as well (until moo added the extra condition).
what palindrome suppose to mean ?
Man... darn... I saw it right after I looked at BicycleTree's response... Oh well.
Palindrome is the same backwards as it is forwards... they just have the commas in strange places.
But there's an infinite number of options that makes it a palindrome. For example:
And so on.
If you take the 4 (from the 24) as the middle of the sequence, then the numbers before and after are the same. So directly before/after the 4 there is a 2 then a 5 then a 1 then a 6 and then an 8 and so on. I would have thought that the answer could have also been:
'3, 5' (but then there would be more commas on the right of the 4)
so the trick is just right at the comma. i got it. thx all
Separate names with a comma.