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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A370728 Inverse permutation of A370727.

Original entry on oeis.org

2, 1, 4, 3, 6, 9, 11, 5, 10, 14, 15, 18, 22, 31, 43, 7, 8, 17, 23, 16, 35, 36, 48, 24, 37, 54, 61, 66, 70, 76, 92, 12, 13, 27, 28, 26, 29, 39, 52, 40, 51, 73, 75, 83, 97, 133, 181, 30, 41, 63, 64, 42, 74, 85, 96, 65, 86, 105, 144, 126, 145, 190, 207, 19, 20
Offset: 1

Views

Author

Rémy Sigrist, Feb 28 2024

Keywords

Comments

Also, lexicographically earliest sequence of distinct positive integers such that for any n > 0, prime(a(n)) AND n = n (where prime(k) denotes the k-th prime number and AND denotes the bitwise AND operator).

Examples

			A370727(42) = 52, hence a(52) = 42.

Links

Crossrefs

Cf. A370727.

Programs

  • PARI
    See Links section.
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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