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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.

A318494 Number of rooted simple connected graphs on n unlabeled nodes where every block is a complete graph with nonroot nodes of two colors.

Table of values

n a(n)
1 1
2 2
3 10
4 50
5 285
6 1696
7 10647
8 68842
9 456922
10 3091546
11 21252396
12 147992264
13 1041779912
14 7401119718
15 52996414666
16 382095695324
17 2771458821772
18 20209364313202
19 148064910503435
20 1089415620952020
21 8046283404651000
22 59635009544475814
23 443380411766040664

List of values

[1, 2, 10, 50, 285, 1696, 10647, 68842, 456922, 3091546, 21252396, 147992264, 1041779912, 7401119718, 52996414666, 382095695324, 2771458821772, 20209364313202, 148064910503435, 1089415620952020, 8046283404651000, 59635009544475814, 443380411766040664]

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

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