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.

A266542 Number of n X 3 binary arrays with rows and columns lexicographically nondecreasing and row and column sums nonincreasing.

Table of values

n a(n)
1 2
2 3
3 5
4 6
5 8
6 11
7 13
8 16
9 20
10 23
11 27
12 32
13 36
14 41
15 47
16 52
17 58
18 65
19 71
20 78
21 86
22 93
23 101
24 110
25 118
26 127
27 137
28 146
29 156
30 167
31 177
32 188
33 200
34 211
35 223
36 236
37 248
38 261
39 275
40 288
41 302
42 317
43 331
44 346
45 362
46 377
47 393
48 410
49 426
50 443
51 461
52 478
53 496
54 515
55 533
56 552
57 572
58 591
59 611
60 632

List of values

[2, 3, 5, 6, 8, 11, 13, 16, 20, 23, 27, 32, 36, 41, 47, 52, 58, 65, 71, 78, 86, 93, 101, 110, 118, 127, 137, 146, 156, 167, 177, 188, 200, 211, 223, 236, 248, 261, 275, 288, 302, 317, 331, 346, 362, 377, 393, 410, 426, 443, 461, 478, 496, 515, 533, 552, 572, 591, 611, 632]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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