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.

A202659 Number of -3..3 arrays of n elements with first through fourth differences also in -3..3.

Table of values

n a(n)
1 7
2 37
3 153
4 475
5 1101
6 2591
7 6055
8 14199
9 33289
10 78119
11 183447
12 430889
13 1011945
14 2376423
15 5580971
16 13107163
17 30782605
18 72293525
19 169783471
20 398743229
21 936465399
22 2199327501
23 5165208441
24 12130703729
25 28489466517
26 66908707817

List of values

[7, 37, 153, 475, 1101, 2591, 6055, 14199, 33289, 78119, 183447, 430889, 1011945, 2376423, 5580971, 13107163, 30782605, 72293525, 169783471, 398743229, 936465399, 2199327501, 5165208441, 12130703729, 28489466517, 66908707817]

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

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