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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.

A293844 Number of chains in the partially ordered (by subspace inclusion) set of all subspaces of the vector space GF(2)^n.

Table of values

n a(n)
0 1
1 3
2 15
3 143
4 2783
5 111231
6 9031551
7 1478288639
8 485839107071
9 319967908160511
10 421866566365149183
11 1112976522259306192895
12 5873986737617632960438271
13 62010172563368117470328995839
14 1309330918812255261194272293584895
15 55294146267102513780208470077042393087

List of values

[1, 3, 15, 143, 2783, 111231, 9031551, 1478288639, 485839107071, 319967908160511, 421866566365149183, 1112976522259306192895, 5873986737617632960438271, 62010172563368117470328995839, 1309330918812255261194272293584895, 55294146267102513780208470077042393087]

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

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