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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.

A369193 Number of labeled simple graphs with n vertices and at most as many edges as covered (non-isolated) vertices.

Table of values

n a(n)
0 1
1 1
2 2
3 8
4 57
5 608
6 8614
7 151365
8 3162353
9 76359554
10 2088663444
11 63760182536
12 2147325661180
13 79051734050283
14 3157246719905273
15 135938652662043977
16 6275929675565965599
17 309242148569525451140
18 16197470691388774460758
19 898619766673014862321176
20 52639402023471657682257626

List of values

[1, 1, 2, 8, 57, 608, 8614, 151365, 3162353, 76359554, 2088663444, 63760182536, 2147325661180, 79051734050283, 3157246719905273, 135938652662043977, 6275929675565965599, 309242148569525451140, 16197470691388774460758, 898619766673014862321176, 52639402023471657682257626]

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

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