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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.

A037952 a(n) = binomial(n, floor((n-1)/2)).

Table of values

n a(n)
0 0
1 1
2 1
3 3
4 4
5 10
6 15
7 35
8 56
9 126
10 210
11 462
12 792
13 1716
14 3003
15 6435
16 11440
17 24310
18 43758
19 92378
20 167960
21 352716
22 646646
23 1352078
24 2496144
25 5200300
26 9657700
27 20058300
28 37442160
29 77558760
30 145422675
31 300540195
32 565722720
33 1166803110
34 2203961430
35 4537567650

List of values

[0, 1, 1, 3, 4, 10, 15, 35, 56, 126, 210, 462, 792, 1716, 3003, 6435, 11440, 24310, 43758, 92378, 167960, 352716, 646646, 1352078, 2496144, 5200300, 9657700, 20058300, 37442160, 77558760, 145422675, 300540195, 565722720, 1166803110, 2203961430, 4537567650]

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

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