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.

A052389 Number of 4-element intersecting families (with not necessarily distinct sets) of an n-element set.

Table of values

n a(n)
0 0
1 1
2 9
3 95
4 1286
5 20681
6 360964
7 6452825
8 114920766
9 2018035121
10 34864971944
11 593281456505
12 9965368457746
13 165615181710161
14 2728984827320124
15 44665923097267385
16 727216852411490726
17 11791672548220250801

List of values

[0, 1, 9, 95, 1286, 20681, 360964, 6452825, 114920766, 2018035121, 34864971944, 593281456505, 9965368457746, 165615181710161, 2728984827320124, 44665923097267385, 727216852411490726, 11791672548220250801]

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

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