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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.

A058053 Number of 3-rowed binary matrices with n ones and no zero columns, up to row and column permutation.

Table of values

n a(n)
0 1
1 1
2 3
3 6
4 11
5 18
6 33
7 49
8 78
9 117
10 171
11 242
12 346
13 469
14 640
15 855
16 1127
17 1463
18 1896
19 2405
20 3045
21 3813
22 4736
23 5831
24 7156
25 8684
26 10507
27 12627
28 15092
29 17935
30 21249
31 25004
32 29341
33 34272
34 39875
35 46207
36 53407
37 61446
38 70528
39 80682
40 92026
41 104650
42 118752

List of values

[1, 1, 3, 6, 11, 18, 33, 49, 78, 117, 171, 242, 346, 469, 640, 855, 1127, 1463, 1896, 2405, 3045, 3813, 4736, 5831, 7156, 8684, 10507, 12627, 15092, 17935, 21249, 25004, 29341, 34272, 39875, 46207, 53407, 61446, 70528, 80682, 92026, 104650, 118752]

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

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