6december

Sequence Problem Solution

What are the 50th, 63rd and 100th numbers in the sequence below?
4, 5, 8, 8, 9, 9, 12, 13, 13, 13, 17, 18, ...

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Solution:

55,73,107
"Fifty" is five (5) characters, plus 50 (the number) = 55.
"Sixty Three": 10 characters + 63 = 73
"One hundred" : 10characters +100=110