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.

A366104 G.f. ( Chi(sqrt(x))^4 + Chi(-sqrt(x))^4 )/2, where Chi(x) = Product_{k >= 0} 1 + x^(2*k+1) is the g.f. of A000700.

Table of values

n a(n)
0 1
1 6
2 17
3 38
4 84
5 172
6 325
7 594
8 1049
9 1796
10 3005
11 4912
12 7877
13 12430
14 19309
15 29580
16 44766
17 66978
18 99150
19 145374
20 211242
21 304382
22 435194
23 617674
24 870651
25 1219352
26 1697283
27 2348888
28 3232919
29 4426546
30 6030872
31 8177986
32 11039633
33 14838518
34 19862613
35 26482878
36 35175989
37 46552818
38 61393694

List of values

[1, 6, 17, 38, 84, 172, 325, 594, 1049, 1796, 3005, 4912, 7877, 12430, 19309, 29580, 44766, 66978, 99150, 145374, 211242, 304382, 435194, 617674, 870651, 1219352, 1697283, 2348888, 3232919, 4426546, 6030872, 8177986, 11039633, 14838518, 19862613, 26482878, 35175989, 46552818, 61393694]