A271615 - cp's OEIS frontend

A271615 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 6 elements linked to themselves.

n	a(n)
1	1
2	4
3	27
4	406
5	7764
6	222936
7	18314708
8	1182352612
9	30892003921
10	3065366376540
11	2070868688611599
12	493143363040812884
13	25923218026065797712
14	11188107558636007931696
15	60230981411511158858617306
16	63827420909748305015725846472
17	9319830273030294425399538816052

[1, 4, 27, 406, 7764, 222936, 18314708, 1182352612, 30892003921, 3065366376540, 2070868688611599, 493143363040812884, 25923218026065797712, 11188107558636007931696, 60230981411511158858617306, 63827420909748305015725846472, 9319830273030294425399538816052]

cp's OEIS Frontend

A271615 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 6 elements linked to themselves.

Table of values

List of values