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.

A305738 Numbers k such that k!*T(k) - 1 is prime, where T(k) is the k-th triangular number.

Table of values

n a(n)
1 2
2 4
3 28
4 34
5 47
6 62
7 228
8 256
9 258
10 341
11 848
12 1362
13 1709
14 2262
15 2692
16 7907
17 10396
18 10501

List of values

[2, 4, 28, 34, 47, 62, 228, 256, 258, 341, 848, 1362, 1709, 2262, 2692, 7907, 10396, 10501]