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.

A144277 Second column (m=2) of triangle S2hat(-2) = A144275.

Table of values

n a(n)
0 1
1 2
2 14
3 100
4 1140
5 14880
6 249280
7 4801280
8 108574400
9 2767072000
10 79286592000
11 2508856627200
12 87115395136000
13 3287694620672000
14 134073047499776000
15 5872147278807040000
16 274939690654024704000
17 13701683362561818624000
18 724128149433185136640000

List of values

[1, 2, 14, 100, 1140, 14880, 249280, 4801280, 108574400, 2767072000, 79286592000, 2508856627200, 87115395136000, 3287694620672000, 134073047499776000, 5872147278807040000, 274939690654024704000, 13701683362561818624000, 724128149433185136640000]

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

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