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.

A051920 a(n) = binomial(n, floor(n/2)) + 1.

Table of values

n a(n)
0 2
1 2
2 3
3 4
4 7
5 11
6 21
7 36
8 71
9 127
10 253
11 463
12 925
13 1717
14 3433
15 6436
16 12871
17 24311
18 48621
19 92379
20 184757
21 352717
22 705433
23 1352079
24 2704157
25 5200301
26 10400601
27 20058301
28 40116601
29 77558761
30 155117521
31 300540196
32 601080391
33 1166803111

List of values

[2, 2, 3, 4, 7, 11, 21, 36, 71, 127, 253, 463, 925, 1717, 3433, 6436, 12871, 24311, 48621, 92379, 184757, 352717, 705433, 1352079, 2704157, 5200301, 10400601, 20058301, 40116601, 77558761, 155117521, 300540196, 601080391, 1166803111]

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

Content is available under The OEIS End-User License Agreement.