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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.

A322600 a(n) is the number of unlabeled rank-3 graded lattices with 5 coatoms and n atoms.

Table of values

n a(n)
1 1
2 5
3 20
4 68
5 190
6 441
7 907
8 1690
9 2916
10 4734
11 7310
12 10836
13 15528
14 21619
15 29365
16 39045
17 50961
18 65434
19 82809
20 103453
21 127751
22 156117
23 188980
24 226794
25 270037
26 319204
27 374813
28 437409
29 507553
30 585831
31 672847
32 769233
33 875637
34 992735
35 1121218
36 1261802

List of values

[1, 5, 20, 68, 190, 441, 907, 1690, 2916, 4734, 7310, 10836, 15528, 21619, 29365, 39045, 50961, 65434, 82809, 103453, 127751, 156117, 188980, 226794, 270037, 319204, 374813, 437409, 507553, 585831, 672847, 769233, 875637, 992735, 1121218, 1261802]

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

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