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.

A305935 Number of labeled spanning intersecting set-systems on n vertices with no singletons.

Table of values

n a(n)
0 1
1 0
2 1
3 12
4 809
5 1146800
6 899927167353
7 291136684655893185321964
8 14704020783497694096988185391720223222562121969
9 12553242487939982849962414795232892198542733492886483991398790450208264017757788101836749760

List of values

[1, 0, 1, 12, 809, 1146800, 899927167353, 291136684655893185321964, 14704020783497694096988185391720223222562121969, 12553242487939982849962414795232892198542733492886483991398790450208264017757788101836749760]

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

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