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.

A249581 List of quadruples (r,s,t,u): the matrix M = [[9,24,16][3,10,8][1,4,4]] is raised to successive powers, then (r,s,t,u) are the square roots of M[3,1], M[3,3], M[1,1], M[1,3] respectively.

Table of values

n a(n)
0 0
1 1
2 1
3 0
4 1
5 2
6 3
7 4
8 5
9 8
10 13
11 20
12 23
13 36
14 59
15 92
16 105
17 164
18 269
19 420
20 479
21 748
22 1227
23 1916
24 2185
25 3412
26 5597
27 8740
28 9967
29 15564
30 25531
31 39868
32 45465
33 70996
34 116461
35 181860
36 207391
37 323852
38 531243
39 829564
40 946025
41 1477268
42 2423293
43 3784100

List of values

[0, 1, 1, 0, 1, 2, 3, 4, 5, 8, 13, 20, 23, 36, 59, 92, 105, 164, 269, 420, 479, 748, 1227, 1916, 2185, 3412, 5597, 8740, 9967, 15564, 25531, 39868, 45465, 70996, 116461, 181860, 207391, 323852, 531243, 829564, 946025, 1477268, 2423293, 3784100]