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.

A178963 E.g.f.: (3+2*sqrt(3)*exp(x/2)*sin(sqrt(3)*x/2))/(exp(-x)+2*exp(x/2)*cos(sqrt(3)*x/2)).

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 3
5 9
6 19
7 99
8 477
9 1513
10 11259
11 74601
12 315523
13 3052323
14 25740261
15 136085041
16 1620265923
17 16591655817
18 105261234643
19 1488257158851
20 17929265150637
21 132705221399353
22 2172534146099019
23 30098784753112329
24 254604707462013571
25 4736552519729393091
26 74180579084559895221
27 705927677520644167681
28 14708695606607601165843
29 256937013876000351610089
30 2716778010767155313771539

List of values

[1, 1, 1, 1, 3, 9, 19, 99, 477, 1513, 11259, 74601, 315523, 3052323, 25740261, 136085041, 1620265923, 16591655817, 105261234643, 1488257158851, 17929265150637, 132705221399353, 2172534146099019, 30098784753112329, 254604707462013571, 4736552519729393091, 74180579084559895221, 705927677520644167681, 14708695606607601165843, 256937013876000351610089, 2716778010767155313771539]

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

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