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.

A214908 Number of 4X4X4 triangular 0..n arrays with every horizontal row nondecreasing and having the same average value.

Table of values

n a(n)
1 2
2 14
3 50
4 182
5 458
6 1184
7 2490
8 5213
9 9722
10 17864
11 30284
12 51088
13 80840
14 127040
15 191162
16 285357
17 410940
18 589294
19 820180
20 1136378
21 1538406
22 2072864
23 2738172
24 3606249
25 4667108
26 6021672
27 7659902
28 9714004
29 12163526
30 15197912
31 18774496

List of values

[2, 14, 50, 182, 458, 1184, 2490, 5213, 9722, 17864, 30284, 51088, 80840, 127040, 191162, 285357, 410940, 589294, 820180, 1136378, 1538406, 2072864, 2738172, 3606249, 4667108, 6021672, 7659902, 9714004, 12163526, 15197912, 18774496]

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

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