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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.

A289383 Total number of nonzero vectors over all subspaces of an n-dimensional vector space over the field with two elements.

Table of values

n a(n)
0 0
1 1
2 6
3 35
4 240
5 2077
6 23562
7 358775
8 7449060
9 213188689
10 8473977534
11 470309723435
12 36582636406680
13 3998655357260293
14 615328930033081458
15 133485330929459963615
16 40859530900982506959180
17 17659495180812130332490681
18 10781678259164073608877557286
19 9301770545157096607562560360595

List of values

[0, 1, 6, 35, 240, 2077, 23562, 358775, 7449060, 213188689, 8473977534, 470309723435, 36582636406680, 3998655357260293, 615328930033081458, 133485330929459963615, 40859530900982506959180, 17659495180812130332490681, 10781678259164073608877557286, 9301770545157096607562560360595]

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

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