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.

A224673 Number of (n+1) X 6 0..2 matrices with each 2 X 2 subblock idempotent.

Table of values

n a(n)
1 115
2 191
3 257
4 381
5 542
6 793
7 1166
8 1746
9 2650
10 4080
11 6355
12 9996
13 15843
14 25257
15 40439
16 64951
17 104556
18 168579
19 272108
20 439556
21 710424
22 1148626
23 1857577
24 3004606
25 4860457
26 7863203
27 12721661
28 20582721
29 33302090
30 53882365
31 87181850
32 141061446

List of values

[115, 191, 257, 381, 542, 793, 1166, 1746, 2650, 4080, 6355, 9996, 15843, 25257, 40439, 64951, 104556, 168579, 272108, 439556, 710424, 1148626, 1857577, 3004606, 4860457, 7863203, 12721661, 20582721, 33302090, 53882365, 87181850, 141061446]