A271610 - cp's OEIS frontend

A271610 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 1 elements linked to themselves.

n	a(n)
1	1
2	3
3	2
4	6
5	240
6	2238
7	2196
8	37004
9	20454036
10	970623228
11	2317631400
12	216893681800
13	1257138602103744
14	316487245419538728
15	2326335506123418128
16	1208982377794384163088
17	63184698521304672890081520
18	85953148896748583125564477008
19	2220650888749669503773432361504

[1, 3, 2, 6, 240, 2238, 2196, 37004, 20454036, 970623228, 2317631400, 216893681800, 1257138602103744, 316487245419538728, 2326335506123418128, 1208982377794384163088, 63184698521304672890081520, 85953148896748583125564477008, 2220650888749669503773432361504]

cp's OEIS Frontend

A271610 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 1 elements linked to themselves.

Table of values

List of values