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.

A224674 Number of (n+1) X 7 0..2 matrices with each 2 X 2 subblock idempotent.

Table of values

n a(n)
1 189
2 300
3 398
4 573
5 793
6 1126
7 1608
8 2343
9 3471
10 5236
11 8022
12 12457
13 19553
14 30950
15 49300
16 78895
17 126679
18 203888
19 328702
20 530537
21 856989
22 1385070
23 2239388
24 3621563
25 5857823
26 9476016
27 15330218
28 24802353
29 40128421
30 64926346
31 105050052
32 169971387

List of values

[189, 300, 398, 573, 793, 1126, 1608, 2343, 3471, 5236, 8022, 12457, 19553, 30950, 49300, 78895, 126679, 203888, 328702, 530537, 856989, 1385070, 2239388, 3621563, 5857823, 9476016, 15330218, 24802353, 40128421, 64926346, 105050052, 169971387]