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.

A224544 Number of (n+1) X 3 0..1 matrices with each 2 X 2 subblock idempotent.

Table of values

n a(n)
1 16
2 32
3 52
4 86
5 137
6 218
7 345
8 547
9 869
10 1385
11 2214
12 3549
13 5702
14 9178
15 14794
16 23872
17 38551
18 62292
19 100695
20 162821
21 263331
22 425947
23 689052
24 1114751
25 1803532
26 2917988
27 4721200
28 7638842
29 12359669
30 19998110
31 32357349
32 52354999
33 84711857
34 137066333

List of values

[16, 32, 52, 86, 137, 218, 345, 547, 869, 1385, 2214, 3549, 5702, 9178, 14794, 23872, 38551, 62292, 100695, 162821, 263331, 425947, 689052, 1114751, 1803532, 2917988, 4721200, 7638842, 12359669, 19998110, 32357349, 52354999, 84711857, 137066333]