Here Are Your Lucky Numbers
It seems from this that all lucky numbers are odd numbers, which I suppose is logical, as luck is an odd concept. Plus, anything that survives in this world must be lucky.
As to The numbers that didn't survive, evidently it's their own fault for being lazy no good slackers.
Lucky
Definition: To build the lucky number sequence, start with natural numbers. Delete every second number, leaving 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, ... . The second number remaining is 3, so delete every third number, leaving 1, 3, 7, 9, 13, 15, 19, 21, ... . The next number remaining is 7, so delete every 7th number, leaving 1, 3, 7, 9, 13, 15, 21, ... . The next number remaining is 9, so delete every ninth number, etc.
Those numbers were lucky they weren't crossed out.
First ten: 1, 3, 7, 9, 13, 15, 21, 25, 31, 33
There are 1118 lucky numbers below 10,000.
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