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.

A376191 Indices of prime terms in A375564, and also the index where the n-th prime appears.

Original entry on oeis.org

2, 3, 8, 9, 18, 19, 20, 21, 40, 41, 42, 43, 44, 45, 84, 85, 86, 87, 88, 89, 90, 91, 92, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 321, 322, 323, 324, 325, 326, 327, 328, 329, 330, 331, 332, 333, 334, 335, 336, 337, 338, 339, 340, 341, 342, 343, 344, 345, 346, 347, 348, 349, 350, 351, 649, 650, 651
Offset: 1

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Author

N. J. A. Sloane, Sep 25 2024

Keywords

Comments

Scott R. Shannon reports (see A375564) that in the first 100000 terms the primes in A375564 appear in their natural order. [This is true in general. - N. J. A. Sloane, Sep 27 2024]

Examples

			A375564 begins 1, 2, 3, 4, 6, 8, 10, 5, 7, 9, 12, 14, 16, 18, 15, 20, 22, 11, 13, 17, 19, ... and the first few primes are at indices 2, 3, 8, 9, 18, 19, 20, 21, ...
		

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