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.

A248466 Number of length 5+2 0..n arrays with no three consecutive terms having the sum of any two elements equal to twice the third.

Table of values

n a(n)
1 42
2 288
3 4488
4 24160
5 105026
6 332940
7 948412
8 2299356
9 5183202
10 10554328
11 20406996
12 37023484
13 64595054
14 107536496
15 173894220
16 271712160
17 414759462
18 616455068
19 899198128
20 1284256968
21 1806180638
22 2496566424
23 3406477720

List of values

[42, 288, 4488, 24160, 105026, 332940, 948412, 2299356, 5183202, 10554328, 20406996, 37023484, 64595054, 107536496, 173894220, 271712160, 414759462, 616455068, 899198128, 1284256968, 1806180638, 2496566424, 3406477720]

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

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