SOLUTION: 12,122,1244

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Question 961783: 12,122,1244
Answer by Edwin McCravy(20056) About Me  (Show Source):
You can put this solution on YOUR website!
12,122,1244
Lots of possibilities:

One possibility:

Start with 12
Tack 1 2 onto 12. Get 122.
Tack 2 4's onto 12. Get 1244
Tack 3 6's onto 12. Get 1244666.


Another possibility:

Replace the last digit, 2, by 1 times 2, which is 2, and tack that same number
onto the end.  Get 122.
Replace the last digit, 2, by 2 times 2, which is 4, and tack that same number
onto the end.  Get 1244.
Replace the last digit, 4, by 3 times 4, which is 12, and tack that same number
onto the end. Get 1241212.

Another possibility

Or you could do it another way.

506%281%29%5E2-1408%281%29%2B914=12
506%282%29%5E2-1408%282%29%2B914=122
506%283%29%5E2-1408%283%29%2B914=1244
506%284%29%5E2-1408%284%29%2B914=3378

Or it could be twice this sequence:

6,61,622,6333,64444,655555

For when you double them you get

12,122,1244,12666,128888,1311110 

Many, many possibilities.  Which is correct?  They all are.

Edwin