A358289 - cp's OEIS frontend

A358289 Generalized Gerrymander sequence: number of ordered ways to divide an n X n square into two connected regions, both of area n^2/2 if n is even, or of areas (n^2-1)/2 and (n^2+1)/2 if n is odd.

n	a(n)
1	0
2	4
3	16
4	140
5	2804
6	161036
7	27803749
8	14314228378
9	21838347160809
10	99704315229167288
11	1367135978051264146578
12	56578717186086829451888706
13	7065692298178203128922479762418
14	2670113158846160742372913777087464324
15	3052313665715695874527667027409186333152556

[0, 4, 16, 140, 2804, 161036, 27803749, 14314228378, 21838347160809, 99704315229167288, 1367135978051264146578, 56578717186086829451888706, 7065692298178203128922479762418, 2670113158846160742372913777087464324, 3052313665715695874527667027409186333152556]

cp's OEIS Frontend

A358289 Generalized Gerrymander sequence: number of ordered ways to divide an n X n square into two connected regions, both of area n^2/2 if n is even, or of areas (n^2-1)/2 and (n^2+1)/2 if n is odd.

Table of values

List of values