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.

A127040 a(n) = binomial(floor((3n+4)/2),floor(n/2)).

Table of values

n a(n)
0 1
1 1
2 5
3 6
4 28
5 36
6 165
7 220
8 1001
9 1365
10 6188
11 8568
12 38760
13 54264
14 245157
15 346104
16 1562275
17 2220075
18 10015005
19 14307150
20 64512240
21 92561040
22 417225900
23 600805296
24 2707475148
25 3910797436
26 17620076360
27 25518731280
28 114955808528

List of values

[1, 1, 5, 6, 28, 36, 165, 220, 1001, 1365, 6188, 8568, 38760, 54264, 245157, 346104, 1562275, 2220075, 10015005, 14307150, 64512240, 92561040, 417225900, 600805296, 2707475148, 3910797436, 17620076360, 25518731280, 114955808528]

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

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