A271616 - cp's OEIS frontend

A271616 Number of ways to reciprocally link elements of an n X n X n triangular array with themselves or a neighbor, with no more than 7 elements linked to themselves.

n	a(n)
1	1
2	4
3	27
4	406
5	12180
6	550173
7	18314708
8	1182352612
9	291282493174
10	42207024086536
11	2070868688611599
12	493143363040812884
13	933291694075331622647
14	530152639533410371743176
15	60230981411511158858617306
16	63827420909748305015725846472
17	911985479463119474886614252798296

[1, 4, 27, 406, 12180, 550173, 18314708, 1182352612, 291282493174, 42207024086536, 2070868688611599, 493143363040812884, 933291694075331622647, 530152639533410371743176, 60230981411511158858617306, 63827420909748305015725846472, 911985479463119474886614252798296]

cp's OEIS Frontend

A271616 Number of ways to reciprocally link elements of an n X n X n triangular array with themselves or a neighbor, with no more than 7 elements linked to themselves.

Table of values

List of values