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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.

A380026 a(n) is the smallest prime p such that p - a(n-1) is a primorial, starting with a(1)=2.

Table of values

n a(n)
1 2
2 3
3 5
4 7
5 13
6 19
7 229
8 439
9 2749
10 5059
11 7369
12 9679
13 39709
14 42019
15 6469735249
16 5766152219975951659023630035336134306565384015606066326325804059
17 5766152219975951659023630035336134306565384015606073747063938869
18 5766152219975951659023630035336134306565384015606073747287031739

List of values

[2, 3, 5, 7, 13, 19, 229, 439, 2749, 5059, 7369, 9679, 39709, 42019, 6469735249, 5766152219975951659023630035336134306565384015606066326325804059, 5766152219975951659023630035336134306565384015606073747063938869, 5766152219975951659023630035336134306565384015606073747287031739]

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

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