A220552 - cp's OEIS frontend

A220552 Number of ways to reciprocally link elements of an n X 7 array either to themselves or to exactly one horizontal, vertical or antidiagonal neighbor.

n	a(n)
1	21
2	5536
3	940432
4	174911750
5	32001129185
6	5873481159019
7	1077372801893440
8	197644957649145164
9	36257360400073221806
10	6651328207323063530996
11	1220169722761405665767328
12	223837152224277574339972896

[21, 5536, 940432, 174911750, 32001129185, 5873481159019, 1077372801893440, 197644957649145164, 36257360400073221806, 6651328207323063530996, 1220169722761405665767328, 223837152224277574339972896]

cp's OEIS Frontend

A220552 Number of ways to reciprocally link elements of an n X 7 array either to themselves or to exactly one horizontal, vertical or antidiagonal neighbor.

Table of values

List of values