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What row of numbers comes next in this series, and why?
1
11
21
1211
111221
312211
13112221

2007-11-22 08:07:37 · 23 answers · asked by Anonymous in Entertainment & Music Jokes & Riddles

remember i dont like CHEATERS

2007-11-22 08:21:11 · update #1

23 answers

To generate a member of the sequence from the previous member, read off the digits of the previous member, counting the number of digits in groups of the same digit. For example:
1 is read off as "one 1" or 11.
11 is read off as "two 1's" or 21.
21 is read off as "one 2, then one 1" or 1211.
1211 is read off as "one 1, then one 2, then two 1's" or 111221.
111221 is read off as "three 1, then two 2, then one 1" or 312211 then
13112221
so the next # is 1113213211

2007-11-22 08:13:38 · answer #1 · answered by Anonymous · 0 0

111221 because the numbers flip and add on to each other like 1122 were flipped and in the sequense and there is 1's on both ends!

2007-11-22 16:19:21 · answer #2 · answered by Anonymous · 0 0

13213211
you just state what was in the previous line: one 3, two 1's, three 2's, one 1

2007-11-22 16:18:40 · answer #3 · answered by Anonymous · 0 0

1113213211

you type the number above and how many of each number there is.

for example in 13112221
you say there is one number 1, one number 3, two number 1s, three number 2s, and one number 1 at the end

If you write how many of what number there is you get:
1113213211!!

yay!!
x x x

2007-11-22 16:16:08 · answer #4 · answered by bella x 2 · 0 0

11111111
patterns reading downward 1, 1, 2, 1, 1, 3, 1, 1,....
oops, no, 1113213211 telling what's in previous line

2007-11-22 16:10:29 · answer #5 · answered by Pogo peeps 6 · 0 1

After the first line, each line describes the previous line:

2007-11-22 16:12:23 · answer #6 · answered by fizzammm! 2 · 0 1

a

2007-11-22 16:24:02 · answer #7 · answered by zoloboom 1 · 0 0

1113213211

you are telling how many numbers of each there is in the row above

ten pointss plssss!! *starr* everyone below just cheated and looked at MY answerr!!

2007-11-22 16:11:32 · answer #8 · answered by NoNameForYou 4 · 0 3

1113213211

you describe the row before it.
[ex. "21" (one two, one one.)]

2007-11-23 01:44:56 · answer #9 · answered by Anonymous · 0 0

You are working my brain so hard.. I cant figure it out.

2007-11-22 16:15:33 · answer #10 · answered by Layla 2 · 0 0

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