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Tuesday, August 5, 2014

[PUZZLE] Solve the following series

1, 20, 33, 400, 505, 660, 777, 8000, 9009, ........


Seems to be little strange ..huh. Most of times when i see this kind of series and i dont get a clue in couple of minutes, i become so mad with me. Fortunately today i could solve this in minutes.

Here is explanation, sequence is Natural Number's binary representation * Number.

Number  Binary  Binary * Number
1 1 1
2 10 20
3 11 33
4 100 400
5 101 505
6 110 660
7 111 777
8 1000 8000
9 1001 9009

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