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.

A339292 Number of essentially parallel achiral series-parallel networks with n elements and without multiple unit elements in parallel.

Table of values

n a(n)
1 1
2 0
3 1
4 2
5 3
6 6
7 11
8 21
9 41
10 79
11 154
12 304
13 598
14 1188
15 2360
16 4719
17 9431
18 18966
19 38107
20 76968
21 155368
22 314987
23 638325
24 1298379
25 2640223
26 5385737
27 10984999
28 22465570
29 45945256
30 94180208
31 193076780
32 396603802
33 814838739
34 1676975258
35 3452212803
36 7117242628

List of values

[1, 0, 1, 2, 3, 6, 11, 21, 41, 79, 154, 304, 598, 1188, 2360, 4719, 9431, 18966, 38107, 76968, 155368, 314987, 638325, 1298379, 2640223, 5385737, 10984999, 22465570, 45945256, 94180208, 193076780, 396603802, 814838739, 1676975258, 3452212803, 7117242628]

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

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