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.

A122680 Number of possible basketball games that end in a tie (n:n). Equivalently, the number of walks on the square lattice from (0,0) to (n,n) where the allowed steps are {(1,0),(2,0),(3,0), (0,1),(0,2),(0,3)}.

Table of values

n a(n)
0 1
1 2
2 14
3 106
4 784
5 6040
6 47332
7 375196
8 3001966
9 24190148
10 196034522
11 1596030740
12 13044459766
13 106961525744
14 879512777006
15 7249483605580
16 59881171431050
17 495545064567260
18 4107666916668414
19 34099685718629264
20 283454909832384416
21 2359069189033880228

List of values

[1, 2, 14, 106, 784, 6040, 47332, 375196, 3001966, 24190148, 196034522, 1596030740, 13044459766, 106961525744, 879512777006, 7249483605580, 59881171431050, 495545064567260, 4107666916668414, 34099685718629264, 283454909832384416, 2359069189033880228]