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.

A107769 a(n) = (A001333(n+1) - 2*A005409(floor((n+3)/2)) - 1) / 4.

Table of values

n a(n)
0 0
1 1
2 2
3 8
4 19
5 54
6 130
7 334
8 806
9 1995
10 4816
11 11746
12 28357
13 68748
14 165972
15 401388
16 969036
17 2341141
18 5652014
19 13649228
20 32952151
21 79563330
22 192082870
23 463752730
24 1119598130
25 2703006111
26 6525634012
27 15754412038
28 38034515209
29 91823775384
30 221682203880
31 535188986904
32 1292060510616
33 3119311948585

List of values

[0, 1, 2, 8, 19, 54, 130, 334, 806, 1995, 4816, 11746, 28357, 68748, 165972, 401388, 969036, 2341141, 5652014, 13649228, 32952151, 79563330, 192082870, 463752730, 1119598130, 2703006111, 6525634012, 15754412038, 38034515209, 91823775384, 221682203880, 535188986904, 1292060510616, 3119311948585]

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

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