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.

A028361 Number of totally isotropic spaces of index n in orthogonal geometry of dimension 2n.

Table of values

n a(n)
0 1
1 2
2 6
3 30
4 270
5 4590
6 151470
7 9845550
8 1270075950
9 326409519150
10 167448083323950
11 171634285407048750
12 351678650799042888750
13 1440827432323678715208750
14 11804699153027899713705288750
15 193419995622362136809061156168750
16 6338179836549184861096125026493768750

List of values

[1, 2, 6, 30, 270, 4590, 151470, 9845550, 1270075950, 326409519150, 167448083323950, 171634285407048750, 351678650799042888750, 1440827432323678715208750, 11804699153027899713705288750, 193419995622362136809061156168750, 6338179836549184861096125026493768750]

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

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