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.

A339298 Number of oriented series-parallel networks with n integer valued elements spanning an initial interval of positive integers and without multiple unit elements in parallel.

Table of values

n a(n)
1 1
2 3
3 26
4 339
5 6241
6 146261
7 4192048
8 141800728
9 5532432894
10 244530744314
11 12076710992326
12 659091388208810
13 39390323152318533
14 2558571976136883890
15 179469998189344217166
16 13520418589045722826274
17 1088748555389998857776521
18 93324804498600668393385498

List of values

[1, 3, 26, 339, 6241, 146261, 4192048, 141800728, 5532432894, 244530744314, 12076710992326, 659091388208810, 39390323152318533, 2558571976136883890, 179469998189344217166, 13520418589045722826274, 1088748555389998857776521, 93324804498600668393385498]

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

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