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.

A228903 Second diagonal of triangle A228902.

Table of values

n a(n)
1 1
2 3
3 45
4 2905
5 411500
6 100545716
7 37614371968
8 19977489354808
9 14291976911388733
10 13248449270832615473
11 15445843697030022753539
12 22118947642938636936616739
13 38166279965353127309979185861
14 78098472647949324804924786089941
15 186993874842690500015923551395259661

List of values

[1, 3, 45, 2905, 411500, 100545716, 37614371968, 19977489354808, 14291976911388733, 13248449270832615473, 15445843697030022753539, 22118947642938636936616739, 38166279965353127309979185861, 78098472647949324804924786089941, 186993874842690500015923551395259661]

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

Content is available under The OEIS End-User License Agreement.