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.

A337438 a(n) is the index k of prime(k), such that abs(prime(k) - Sum_{j=k-2..k+2} prime(j)/5) sets a new record.

Original entry on oeis.org

3, 4, 8, 15, 25, 29, 30, 46, 154, 190, 206, 217, 1183, 1410, 1664, 1832, 2225, 2810, 3385, 14358, 30802, 31545, 40933, 104071, 104072, 118506, 149689, 325853, 1094422, 1319945, 2850174, 2850175, 6957876, 10539433, 22749705, 23163299, 72507381, 182837804, 415271758, 486570087
Offset: 1

Views

Author

Hugo Pfoertner, Aug 29 2020

Keywords

Comments

A337439 are the corresponding primes.

Examples

			See A337489.
		

Crossrefs

Programs

  • PARI
    \\ See A337439, replace p4 by primepi(p4) in call of print1.

Extensions

Name edited by Peter Munn, Aug 01 2025