cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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A268693 Odd numbers that are not of the form p + 2^a + 2^b with b > a > 0, and p prime.

Original entry on oeis.org

1, 3, 5, 7, 255, 15045, 20655, 25755, 39525, 44115, 46665, 65535, 70125, 97155, 100215, 132855, 144465, 162945, 196605, 200175, 277695, 280755, 327675, 441915, 469965, 548505, 688245, 720375, 770355, 773925, 789225, 1017705, 1027395, 1110015, 1114095, 1127355
Offset: 1

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Author

Arkadiusz Wesolowski, Feb 11 2016

Keywords

Comments

This sequence is infinite; in particular, 2^(2^n) - 1 is in this sequence for each n > 2.
Not every member of this sequence greater than 7 is divisible by 255, see A268694.

Crossrefs

Cf. A232565, A268694. Supersequence of A156695.
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