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.

A308899 a(n) = largest prime factor of the number with decimal expansion 20305070...0p_n where p_n = n-th prime.

Table of values

n a(n)
1 2
2 29
3 131
4 33287
5 17627
6 1754975809
7 59218567
8 318879703697
9 2030507011013017019023
10 14400758943354730631369
11 1016015647
12 32002443156997
13 2464082401591041689
14 4916481866859605372937116297910511
15 2030507011013017019023029031037041043047

List of values

[2, 29, 131, 33287, 17627, 1754975809, 59218567, 318879703697, 2030507011013017019023, 14400758943354730631369, 1016015647, 32002443156997, 2464082401591041689, 4916481866859605372937116297910511, 2030507011013017019023029031037041043047]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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