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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.

A189444 Number of n X 4 array permutations with each element moving zero or one space horizontally or diagonally.

Table of values

n a(n)
1 5
2 61
3 666
4 7300
5 80282
6 883049
7 9712873
8 106834338
9 1175098084
10 12925203122
11 142167601085
12 1563737653381
13 17199948722346
14 189186616701220
15 2080911781577162
16 22888478678939969
17 251756206521753553

List of values

[5, 61, 666, 7300, 80282, 883049, 9712873, 106834338, 1175098084, 12925203122, 142167601085, 1563737653381, 17199948722346, 189186616701220, 2080911781577162, 22888478678939969, 251756206521753553]

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

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