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.

A001171 From least significant term in expansion of E( tr (X'*X)^n ), X rectangular and Gaussian. Also number of types of sequential n-swap moves for traveling salesman problem.

Table of values

n a(n)
1 1
2 1
3 4
4 20
5 148
6 1348
7 15104
8 198144
9 2998656
10 51290496
11 979732224
12 20661458688
13 476936766720
14 11959743432960
15 323764901314560
16 9410647116349440
17 292316310979706880
18 9663569062008422400
19 338760229843058688000

List of values

[1, 1, 4, 20, 148, 1348, 15104, 198144, 2998656, 51290496, 979732224, 20661458688, 476936766720, 11959743432960, 323764901314560, 9410647116349440, 292316310979706880, 9663569062008422400, 338760229843058688000]

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

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