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.

A370642 Number of minimal subsets of {1..n} such that it is not possible to choose a different binary index of each element.

Table of values

n a(n)
0 0
1 0
2 0
3 1
4 1
5 3
6 9
7 26
8 26
9 40
10 82
11 175
12 338
13 636
14 1114

List of values

[0, 0, 0, 1, 1, 3, 9, 26, 26, 40, 82, 175, 338, 636, 1114]