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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.

A359990 Array read by antidiagonals: T(m,n) is the number of edge cuts in the grid graph P_m X P_n.

Table of values

n a(n)
1 0
2 1
3 1
4 3
5 11
6 3
7 7
8 105
9 105
10 7
11 15
12 919
13 3665
14 919
15 15
16 31
17 7713
18 123215
19 123215
20 7713
21 31
22 63
23 63351
24 4051679
25 16222021
26 4051679
27 63351
28 63
29 127
30 514321
31 131630449
32 2108725953
33 2108725953
34 131630449
35 514321
36 127
37 255
38 4148839
39 4248037953
40 272179739279
41 1089224690733
42 272179739279
43 4248037953
44 4148839
45 255

List of values

[0, 1, 1, 3, 11, 3, 7, 105, 105, 7, 15, 919, 3665, 919, 15, 31, 7713, 123215, 123215, 7713, 31, 63, 63351, 4051679, 16222021, 4051679, 63351, 63, 127, 514321, 131630449, 2108725953, 2108725953, 131630449, 514321, 127, 255, 4148839, 4248037953, 272179739279, 1089224690733, 272179739279, 4248037953, 4148839, 255]

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

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