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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A374102 Prime binary self (or Colombian) numbers: primes not expressible as the sum of an integer and its binary weight.

Original entry on oeis.org

13, 23, 37, 71, 83, 97, 113, 233, 311, 313, 337, 359, 373, 401, 409, 449, 457, 499, 569, 593, 599, 601, 617, 641, 643, 739, 761, 809, 821, 853, 881, 883, 929, 947, 953, 977, 1103, 1129, 1153, 1193, 1217, 1237, 1249, 1297, 1303, 1319, 1321, 1429, 1459, 1489, 1499
Offset: 1

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Author

Amiram Eldar, Jun 28 2024

Keywords

Crossrefs

Intersection of A000040 and A010061.
A374103 is a subsequence.
Cf. A000120, A006378 (decimal analog).

Programs

  • Mathematica
    With[{m = 240}, Complement[Prime[Range[m]], Table[n + DigitCount[n, 2, 1], {n, 0, Prime[m]}]]]
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