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.

A238831 a(n) = 0 if n <= 2; thereafter a(n) = A238827(n) + A238830(n-2).

Table of values

n a(n)
1 0
2 0
3 0
4 0
5 0
6 1
7 3
8 8
9 21
10 49
11 124
12 295
13 735
14 1789
15 4428
16 10874
17 26836
18 66062
19 162838
20 401081
21 988225
22 2434388
23 5997403
24 14774547
25 36397880
26 89667011
27 220898267
28 544190131
29 1340632638
30 3302695932
31 8136311688
32 20044096016
33 49379354928
34 121647818677
35 299683787423
36 738281805364
37 1818783831517

List of values

[0, 0, 0, 0, 0, 1, 3, 8, 21, 49, 124, 295, 735, 1789, 4428, 10874, 26836, 66062, 162838, 401081, 988225, 2434388, 5997403, 14774547, 36397880, 89667011, 220898267, 544190131, 1340632638, 3302695932, 8136311688, 20044096016, 49379354928, 121647818677, 299683787423, 738281805364, 1818783831517]

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

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