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.

A301381 Number of tied close American football games: number of ways for the game to end at the score of n to n and never be separated by more than one score after each play.

Table of values

n a(n)
0 1
1 0
2 2
3 2
4 6
5 24
6 80
7 208
8 922
9 2310
10 8794
11 26000
12 86632
13 274120
14 893552
15 2837882
16 9254642
17 29470852
18 95567342
19 306155908
20 987994256
21 3174707284
22 10228816628
23 32893256236
24 105937526030
25 340778467916
26 1097194416030
27 3530389210580
28 11364292475448
29 36571646955122
30 117713073900332

List of values

[1, 0, 2, 2, 6, 24, 80, 208, 922, 2310, 8794, 26000, 86632, 274120, 893552, 2837882, 9254642, 29470852, 95567342, 306155908, 987994256, 3174707284, 10228816628, 32893256236, 105937526030, 340778467916, 1097194416030, 3530389210580, 11364292475448, 36571646955122, 117713073900332]

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

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