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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.

A218384 Number of nonempty subsets S of the powerset of a set of size n that have the even intersection property.

Table of values

n a(n)
1 1
2 7
3 71
4 3071
5 1966207
6 270499994623
7 2342736474457787596799
8 86772003564839307784895323681111305093119
9 59169757600268575861444773339439520883460632949720404019392912099891777942585343

List of values

[1, 7, 71, 3071, 1966207, 270499994623, 2342736474457787596799, 86772003564839307784895323681111305093119, 59169757600268575861444773339439520883460632949720404019392912099891777942585343]

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

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