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.

A206391 Number of n X 3 0..5 arrays with no element equal to another within a city block distance of two, and new values 0..5 introduced in row major order.

Table of values

n a(n)
1 1
2 4
3 26
4 206
5 1592
6 12428
7 96632
8 752552
9 5856992
10 45595664
11 354918176
12 2762807264
13 21506309504
14 167411006144
15 1303169775488
16 10144214859392
17 78965192918528
18 614685592164608
19 4784872150020608
20 37246687385693696

List of values

[1, 4, 26, 206, 1592, 12428, 96632, 752552, 5856992, 45595664, 354918176, 2762807264, 21506309504, 167411006144, 1303169775488, 10144214859392, 78965192918528, 614685592164608, 4784872150020608, 37246687385693696]

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

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