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.

A373036 Triangle read by rows: T(n,k) is the number of edge subsets E of the n X k grid graph such that E contains a path between the top left node and the bottom right node, 1 <= k <= n.

Table of values

n a(n)
1 1
2 1
3 7
4 1
5 40
6 1135
7 1
8 216
9 28942
10 3329245
11 1
12 1144
13 707239
14 358911148
15 167176484530
16 1
17 6016
18 16963938
19 37502829018
20 74568672196498
21 140386491543732211
22 1
23 31552
24 403490839
25 3856945416544
26 32485805235240376
27 256258754970108999490
28 1946586793700869420041631

List of values

[1, 1, 7, 1, 40, 1135, 1, 216, 28942, 3329245, 1, 1144, 707239, 358911148, 167176484530, 1, 6016, 16963938, 37502829018, 74568672196498, 140386491543732211, 1, 31552, 403490839, 3856945416544, 32485805235240376, 256258754970108999490, 1946586793700869420041631]