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.

A215857 Number of simple labeled graphs on n nodes with exactly 7 connected components that are trees or cycles.

Table of values

n a(n)
7 1
8 28
9 714
10 17220
11 424809
12 11002068
13 303874714
14 9016296289
15 288135739892
16 9913826194272
17 366486926833846
18 14513217676764534
19 613646633464214863
20 27609928896732666760
21 1317652578222779606269
22 66497975770225498765728
23 3538905411811229060814213

List of values

[1, 28, 714, 17220, 424809, 11002068, 303874714, 9016296289, 288135739892, 9913826194272, 366486926833846, 14513217676764534, 613646633464214863, 27609928896732666760, 1317652578222779606269, 66497975770225498765728, 3538905411811229060814213]

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

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