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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A333393 Primes whose binary representation corresponds to the characteristic function of 1, 2, 3, 5, 7, ... (1 followed by primes).

Original entry on oeis.org

3, 7, 29, 1873, 7672913, 8045632442437, 2490002635466567109268165355290155548689
Offset: 1

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Author

Ilya Gutkovskiy, Mar 18 2020

Keywords

Comments

The next term is too large to include.

Examples

			1873 (in base 10) = 11101010001 (in base 2).
                    ||| | |   |
                    123 5 7  11
		

Crossrefs

Programs

  • Mathematica
    Select[Table[2^(Prime[n] - 1) + Sum[2^(Prime[n] - Prime[k]), {k, 1, n}], {n, 1, 32}], PrimeQ[#] &]
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