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.

A235610 Array read by antidiagonals: T(n,k) = number of possible positions in standard Connect Four play on a board of height n and width k (n>=1, k>=1).

Table of values

n a(n)
1 2
2 3
3 5
4 4
5 18
6 13
7 5
8 58
9 116
10 35
11 6
12 179
13 869
14 741
15 96
16 7
17 537
18 6000
19 12031
20 4688
21 267
22 8
23 1571
24 38310
25 161029
26 158911
27 29737
28 750
29 9
30 4587
31 235781
32 1706255
33 3945711
34 2087325
35 189648
36 2118

List of values

[2, 3, 5, 4, 18, 13, 5, 58, 116, 35, 6, 179, 869, 741, 96, 7, 537, 6000, 12031, 4688, 267, 8, 1571, 38310, 161029, 158911, 29737, 750, 9, 4587, 235781, 1706255, 3945711, 2087325, 189648, 2118]