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.

A094574 Number of (<=2)-covers of an n-set.

Table of values

n a(n)
0 1
1 1
2 5
3 40
4 457
5 6995
6 136771
7 3299218
8 95668354
9 3268445951
10 129468914524
11 5868774803537
12 301122189141524
13 17327463910351045
14 1109375488487304027
15 78484513540137938209
16 6098627708074641312182
17 517736625823888411991202
18 47791900951140948275632148

List of values

[1, 1, 5, 40, 457, 6995, 136771, 3299218, 95668354, 3268445951, 129468914524, 5868774803537, 301122189141524, 17327463910351045, 1109375488487304027, 78484513540137938209, 6098627708074641312182, 517736625823888411991202, 47791900951140948275632148]

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

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