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.

A037951 a(n) = binomial(n, floor((n-3)/2)).

Table of values

n a(n)
0 0
1 0
2 0
3 1
4 1
5 5
6 6
7 21
8 28
9 84
10 120
11 330
12 495
13 1287
14 2002
15 5005
16 8008
17 19448
18 31824
19 75582
20 125970
21 293930
22 497420
23 1144066
24 1961256
25 4457400
26 7726160
27 17383860
28 30421755
29 67863915
30 119759850
31 265182525

List of values

[0, 0, 0, 1, 1, 5, 6, 21, 28, 84, 120, 330, 495, 1287, 2002, 5005, 8008, 19448, 31824, 75582, 125970, 293930, 497420, 1144066, 1961256, 4457400, 7726160, 17383860, 30421755, 67863915, 119759850, 265182525]