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.

A249704 Number of length n+3 0..5 arrays with every four consecutive terms having the maximum of some two terms equal to the minimum of the remaining two terms.

Table of values

n a(n)
1 366
2 966
3 2524
4 6172
5 13666
6 32500
7 80360
8 198164
9 474302
10 1140694
11 2782978
12 6829394
13 16652268
14 40525818
15 98972744
16 242571962
17 594328514
18 1454961448
19 3564476384
20 8746203338
21 21475833432
22 52737244176
23 129543959312
24 318439317418

List of values

[366, 966, 2524, 6172, 13666, 32500, 80360, 198164, 474302, 1140694, 2782978, 6829394, 16652268, 40525818, 98972744, 242571962, 594328514, 1454961448, 3564476384, 8746203338, 21475833432, 52737244176, 129543959312, 318439317418]

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

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