The following two sets were generated by the same process.
The first set is easy to handle the second is more complicated. Hope no hints will be needed:

Easy: {1,2,3,4,5,6,8,9,10,11,12,13,14}.
Diff: {2,7,9,10,12,17,19,21,23,28,30,31,33,38,40}

Good luck

Fibonacci but with Subtraction still stays Positive | Rating: 4.00
Posted on 2023-02-15 by Brian Smith (Solution Posted, 3 Comments)

Bits adjacent to 1 | Rating: 5.00
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Mystery sequence | Rating: 5.00
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Consecutive Conclusion II | Rating: 5.00
Posted on 2022-05-25 by K Sengupta (No Solution Yet, 3 Comments)

A hard nut |
Posted on 2022-02-11 by Ady TZIDON (No Solution Yet, 1 Comments)

Sequence Sum Situation | Rating: 3.00
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Seven | Rating: 5.00
Posted on 2021-08-15 by Ady TZIDON (No Solution Yet, 2 Comments)