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.

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

Offset

3,1

Comments

It is conjectured that a(n) = 2*n^2 - 9*(n-1) for all n>22.

References

For references and links see A288247.

Links

Table of n, a(n) for n=3..28.

Crossrefs

Cf. A288247, A288250.

Sequence in context: A063597 A328054 A171701 * A360139 A004210 A247022

Adjacent sequences: A288246 A288247 A288248 * A288250 A288251 A288252

Keyword

nonn,more

Author

Hugo Pfoertner, Jun 07 2017

Status

approved