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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.

A189655 Number of 7Xn array permutations with each element moving zero or one space horizontally, diagonally or antidiagonally.

Table of values

n a(n)
1 1
2 6272
3 1180167
4 1598901325
5 1113666564608
6 1104421532180261
7 958681588788944613
8 890636373071604964608
9 805563236027350658919747
10 738517619493670317553084705
11 673437704833463142294374124032

List of values

[1, 6272, 1180167, 1598901325, 1113666564608, 1104421532180261, 958681588788944613, 890636373071604964608, 805563236027350658919747, 738517619493670317553084705, 673437704833463142294374124032]

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

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