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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.

A107855 a(n) = 2*a(n-2)+4*a(n-4)+a(n-6), n>11.

Table of values

n a(n)
1 1
2 1
3 1
4 0
5 1
6 1
7 2
8 3
9 1
10 10
11 9
12 33
13 24
14 109
15 85
16 360
17 275
18 1189
19 914
20 3927
21 3013
22 12970
23 9957
24 42837
25 32880
26 141481
27 108601
28 467280
29 358679
30 1543321
31 1184642
32 5097243
33 3912601
34 16835050
35 12922449
36 55602393
37 42679944
38 183642229
39 140962285

List of values

[1, 1, 1, 0, 1, 1, 2, 3, 1, 10, 9, 33, 24, 109, 85, 360, 275, 1189, 914, 3927, 3013, 12970, 9957, 42837, 32880, 141481, 108601, 467280, 358679, 1543321, 1184642, 5097243, 3912601, 16835050, 12922449, 55602393, 42679944, 183642229, 140962285]

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

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