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.

A289225 Number of ways to select 4 disjoint point triples from an n X n X n triangular point grid, each point triple forming a 2 X 2 X 2 triangle.

Table of values

n a(n)
4 0
5 13
6 859
7 9585
8 56520
9 231635
10 749223
11 2051819
12 4965960
13 10924065
14 22268395
15 42654733
16 77575104
17 135020535
18 226306535
19 367085655
20 578573168
21 889013589
22 1335417435
23 1965599305
24 2840550040
25 4037177403
26 5651451399
27 7801992035
28 10634139000
29 14324544425
30 19086331563

List of values

[0, 13, 859, 9585, 56520, 231635, 749223, 2051819, 4965960, 10924065, 22268395, 42654733, 77575104, 135020535, 226306535, 367085655, 578573168, 889013589, 1335417435, 1965599305, 2840550040, 4037177403, 5651451399, 7801992035, 10634139000, 14324544425, 19086331563]