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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.

A224227 a(n) = (1/50)*((15*n^2-20*n+4)*Fibonacci(n) - (5*n^2-6*n)*A000032(n)).

Table of values

n a(n)
0 0
1 0
2 0
3 1
4 2
5 7
6 16
7 38
8 82
9 173
10 352
11 701
12 1368
13 2628
14 4980
15 9329
16 17302
17 31811
18 58040
19 105178
20 189446
21 339373
22 604964
23 1073593
24 1897488
25 3341160
26 5863080
27 10256065
28 17888138
29 31115071
30 53985856
31 93447278
32 161397754
33 278184461
34 478550344
35 821734901
36 1408610088
37 2410719084
38 4119433884
39 7029086705
40 11977419742
41 20382654971
42 34643298728
43 58811818210

List of values

[0, 0, 0, 1, 2, 7, 16, 38, 82, 173, 352, 701, 1368, 2628, 4980, 9329, 17302, 31811, 58040, 105178, 189446, 339373, 604964, 1073593, 1897488, 3341160, 5863080, 10256065, 17888138, 31115071, 53985856, 93447278, 161397754, 278184461, 478550344, 821734901, 1408610088, 2410719084, 4119433884, 7029086705, 11977419742, 20382654971, 34643298728, 58811818210]

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

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