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.

A290866 a(n) = number of segments (edges) in the configuration A290447(n).

Table of values

n a(n)
1 0
2 1
3 3
4 8
5 20
6 45
7 91
8 168
9 285
10 450
11 670
12 981
13 1375
14 1902
15 2568
16 3371
17 4326
18 5522
19 6927
20 8639
21 10624
22 12882
23 15489
24 18559
25 22006
26 25904
27 30321
28 35254
29 40728
30 46959
31 53721
32 61354
33 69734
34 78917
35 89029
36 100018
37 111758
38 124759
39 138943

List of values

[0, 1, 3, 8, 20, 45, 91, 168, 285, 450, 670, 981, 1375, 1902, 2568, 3371, 4326, 5522, 6927, 8639, 10624, 12882, 15489, 18559, 22006, 25904, 30321, 35254, 40728, 46959, 53721, 61354, 69734, 78917, 89029, 100018, 111758, 124759, 138943]

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

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