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.

A060091 Number of 4-block ordered bicoverings of an unlabeled n-set.

Table of values

n a(n)
0 0
1 0
2 0
3 16
4 63
5 162
6 341
7 636
8 1092
9 1764
10 2718
11 4032
12 5797
13 8118
14 11115
15 14924
16 19698
17 25608
18 32844
19 41616
20 52155
21 64714
22 79569
23 97020
24 117392
25 141036
26 168330
27 199680
28 235521
29 276318
30 322567
31 374796
32 433566
33 499472
34 573144
35 655248
36 746487

List of values

[0, 0, 0, 16, 63, 162, 341, 636, 1092, 1764, 2718, 4032, 5797, 8118, 11115, 14924, 19698, 25608, 32844, 41616, 52155, 64714, 79569, 97020, 117392, 141036, 168330, 199680, 235521, 276318, 322567, 374796, 433566, 499472, 573144, 655248, 746487]