A068393 - cp's OEIS frontend

A068393 Number of partitions of n X n checkerboard by two edgewise-connected sets which produce the maximum n^2-2n+2 frontier edges between the two sets. Partitions equal under rotation or reflection are counted only once.

n	a(n)
2	2
3	3
4	7
5	44
6	494
7	748827
8	99987552
9	23904291912
10	23904291912
11	14647978829979
12	16186345621426754
13	45843626565163628751
14	235646717730827228414584
15	3099290829556018890177304005

[2, 3, 7, 44, 494, 748827, 99987552, 23904291912, 23904291912, 14647978829979, 16186345621426754, 45843626565163628751, 235646717730827228414584, 3099290829556018890177304005]

cp's OEIS Frontend

A068393 Number of partitions of n X n checkerboard by two edgewise-connected sets which produce the maximum n^2-2n+2 frontier edges between the two sets. Partitions equal under rotation or reflection are counted only once.

Table of values

List of values