A271611 - cp's OEIS frontend

A271611 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 2 elements linked to themselves.

n	a(n)
1	1
2	3
3	17
4	114
5	240
6	2238
7	216318
8	5622392
9	20454036
10	970623228
11	1038614548176
12	131929454285752
13	1257138602103744
14	316487245419538728
15	3147612978951707912144
16	2069163709506683013857472
17	63184698521304672890081520
18	85953148896748583125564477008

[1, 3, 17, 114, 240, 2238, 216318, 5622392, 20454036, 970623228, 1038614548176, 131929454285752, 1257138602103744, 316487245419538728, 3147612978951707912144, 2069163709506683013857472, 63184698521304672890081520, 85953148896748583125564477008]

cp's OEIS Frontend

A271611 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 2 elements linked to themselves.

Table of values

List of values