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.

A335684 Array read by antidiagonals: T(m,n) = number of m-by-n hexagonal digraphs without oriented 3-cycles (for m >= 1, n >= 1).

Table of values

n a(n)
1 1
2 2
3 2
4 4
5 18
6 4
7 8
8 162
9 162
10 8
11 16
12 1458
13 6570
14 1458
15 16
16 32
17 13122
18 266454
19 266454
20 13122
21 32
22 64
23 118098
24 10806354
25 48697686
26 10806354
27 118098
28 64
29 128
30 1062882
31 438264342
32 8900099046
33 8900099046
34 438264342
35 1062882
36 128
37 256
38 9565938
39 17774323650
40 1626602228838
41 7330125946050
42 1626602228838
43 17774323650
44 9565938
45 256

List of values

[1, 2, 2, 4, 18, 4, 8, 162, 162, 8, 16, 1458, 6570, 1458, 16, 32, 13122, 266454, 266454, 13122, 32, 64, 118098, 10806354, 48697686, 10806354, 118098, 64, 128, 1062882, 438264342, 8900099046, 8900099046, 438264342, 1062882, 128, 256, 9565938, 17774323650, 1626602228838, 7330125946050, 1626602228838, 17774323650, 9565938, 256]

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

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