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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.

A288249 2 * largest possible area of a simple n-sided lattice polygon whose vertex coordinates x and y are both independent permutations of the integers 1 ... n, subject to the condition that none of its edges are mutually parallel.

Table of values

n a(n)
3 3
4 8
5 18
6 28
7 44
8 65
9 88
10 118
11 151
12 189
13 226
14 272
15 323
16 377
17 433
18 493
19 558
20 627
21 701
22 778
23 860
24 945
25 1034
26 1127
27 1224
28 1325

List of values

[3, 8, 18, 28, 44, 65, 88, 118, 151, 189, 226, 272, 323, 377, 433, 493, 558, 627, 701, 778, 860, 945, 1034, 1127, 1224, 1325]

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

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