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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.

A229013 Number of arrays of median of three adjacent elements of some length-5 0..n array, with no adjacent equal elements in the latter.

Table of values

n a(n)
1 2
2 15
3 46
4 101
5 186
6 307
7 470
8 681
9 946
10 1271
11 1662
12 2125
13 2666
14 3291
15 4006
16 4817
17 5730
18 6751
19 7886
20 9141
21 10522
22 12035
23 13686
24 15481
25 17426
26 19527
27 21790
28 24221
29 26826
30 29611
31 32582
32 35745
33 39106
34 42671
35 46446
36 50437
37 54650
38 59091
39 63766
40 68681
41 73842

List of values

[2, 15, 46, 101, 186, 307, 470, 681, 946, 1271, 1662, 2125, 2666, 3291, 4006, 4817, 5730, 6751, 7886, 9141, 10522, 12035, 13686, 15481, 17426, 19527, 21790, 24221, 26826, 29611, 32582, 35745, 39106, 42671, 46446, 50437, 54650, 59091, 63766, 68681, 73842]

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

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