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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.

A323818 Number of connected set-systems covering n vertices.

Table of values

n a(n)
0 1
1 1
2 4
3 96
4 31840
5 2147156736
6 9223372011084915712
7 170141183460469231602560095199828453376
8 57896044618658097711785492504343953923912733397452774312021795134847892828160

List of values

[1, 1, 4, 96, 31840, 2147156736, 9223372011084915712, 170141183460469231602560095199828453376, 57896044618658097711785492504343953923912733397452774312021795134847892828160]

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

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