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.

A027321 Duplicate of A027315.

Table of values

n	a(n)
0	1
1	2
2	6
3	20
4	90
5	692
6	5774
7	48924
8	417440
9	3580036
10	30831756
11	266463804

List of values

[1, 2, 6, 20, 90, 692, 5774, 48924, 417440, 3580036, 30831756, 266463804]

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

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