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.

A370335 Expansion of Sum_{n>=0} 5^n * (2*4^n + 1)/3 * x^(n*(n+1)/2).

Table of values

n a(n)
0 1
1 15
2 0
3 275
4 0
5 0
6 5375
7 0
8 0
9 0
10 106875
11 0
12 0
13 0
14 0
15 2134375
16 0
17 0
18 0
19 0
20 0
21 42671875
22 0
23 0
24 0
25 0
26 0
27 0
28 853359375
29 0
30 0
31 0
32 0
33 0
34 0
35 0
36 17066796875
37 0
38 0
39 0
40 0
41 0
42 0
43 0
44 0
45 341333984375
46 0
47 0
48 0
49 0
50 0
51 0
52 0
53 0
54 0
55 6826669921875
56 0
57 0
58 0
59 0
60 0
61 0
62 0
63 0
64 0
65 0
66 136533349609375

List of values

[1, 15, 0, 275, 0, 0, 5375, 0, 0, 0, 106875, 0, 0, 0, 0, 2134375, 0, 0, 0, 0, 0, 42671875, 0, 0, 0, 0, 0, 0, 853359375, 0, 0, 0, 0, 0, 0, 0, 17066796875, 0, 0, 0, 0, 0, 0, 0, 0, 341333984375, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6826669921875, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 136533349609375]