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.

A339229 Number of oriented series-parallel networks with n integer valued elements spanning an initial interval of positive integers.

Table of values

n a(n)
1 1
2 5
3 46
4 677
5 13897
6 367329
7 11875112
8 453884998
9 20021744482
10 1001103144204
11 55950350379398
12 3456387167052662
13 233868854544617505
14 17200896572547662922
15 1366363690436820691346
16 116580486267706011046208
17 10633034275200701222560393
18 1032398637197381396948606128

List of values

[1, 5, 46, 677, 13897, 367329, 11875112, 453884998, 20021744482, 1001103144204, 55950350379398, 3456387167052662, 233868854544617505, 17200896572547662922, 1366363690436820691346, 116580486267706011046208, 10633034275200701222560393, 1032398637197381396948606128]

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

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