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.

A224548 Number of (n+1) X 7 0..1 matrices with each 2 X 2 subblock idempotent.

Table of values

n a(n)
1 132
2 218
3 302
4 448
5 635
6 916
7 1323
8 1941
9 2887
10 4363
11 6688
12 10383
13 16288
14 25764
15 41012
16 65594
17 105273
18 169374
19 272985
20 440519
21 711477
22 1149773
23 1858822
24 3005953
25 4861910
26 7864766
27 12723338
28 20584516
29 33304007
30 53884408
31 87184023
32 141063753

List of values

[132, 218, 302, 448, 635, 916, 1323, 1941, 2887, 4363, 6688, 10383, 16288, 25764, 41012, 65594, 105273, 169374, 272985, 440519, 711477, 1149773, 1858822, 3005953, 4861910, 7864766, 12723338, 20584516, 33304007, 53884408, 87184023, 141063753]