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.

A268302 G.f.: Sum_{n>=1} x^(n*(n-1)/2) * (G(x)^n + 1/G(x)^(n-1)), where G(x) is the g.f. of A268300.

Table of values

n a(n)
0 3
1 8
2 28
3 144
4 736
5 4024
6 22912
7 134784
8 813476
9 5010904
10 31379808
11 199196320
12 1278911808
13 8290414024
14 54186864896
15 356711621984
16 2362968349568
17 15739688709864
18 105357470567228
19 708338644347808
20 4781146692837856
21 32387329985982176
22 220104493513881920
23 1500273861724289984
24 10253983269166864256
25 70258772726034956688
26 482514972838806347776
27 3320848006096569464080
28 22900703924095461843008
29 158216154716853989543080

List of values

[3, 8, 28, 144, 736, 4024, 22912, 134784, 813476, 5010904, 31379808, 199196320, 1278911808, 8290414024, 54186864896, 356711621984, 2362968349568, 15739688709864, 105357470567228, 708338644347808, 4781146692837856, 32387329985982176, 220104493513881920, 1500273861724289984, 10253983269166864256, 70258772726034956688, 482514972838806347776, 3320848006096569464080, 22900703924095461843008, 158216154716853989543080]