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.

A210288 Number of 2 X 2 matrices with all elements in {0,1,...,n} and permanent = trace.

Table of values

n a(n)
0 1
1 6
2 19
3 29
4 41
5 51
6 65
7 75
8 89
9 101
10 115
11 125
12 143
13 153
14 167
15 181
16 197
17 207
18 225
19 235
20 253
21 267
22 281
23 291
24 313
25 325
26 339
27 353
28 371
29 381
30 403
31 413
32 431
33 445
34 459
35 473
36 497
37 507
38 521
39 535
40 557
41 567
42 589
43 599
44 617
45 635

List of values

[1, 6, 19, 29, 41, 51, 65, 75, 89, 101, 115, 125, 143, 153, 167, 181, 197, 207, 225, 235, 253, 267, 281, 291, 313, 325, 339, 353, 371, 381, 403, 413, 431, 445, 459, 473, 497, 507, 521, 535, 557, 567, 589, 599, 617, 635]