A216333 - cp's OEIS frontend

A216333 Number of horizontal and antidiagonal neighbor colorings of the even squares of an nX3 array with new integer colors introduced in row major order.

n	a(n)
1	1
2	2
3	15
4	52
5	877
6	4140
7	115975
8	678570
9	27644437
10	190899322
11	10480142147
12	82864869804
13	5832742205057
14	51724158235372
15	4506715738447323
16	44152005855084346
17	4638590332229999353
18	49631246523618756274

[1, 2, 15, 52, 877, 4140, 115975, 678570, 27644437, 190899322, 10480142147, 82864869804, 5832742205057, 51724158235372, 4506715738447323, 44152005855084346, 4638590332229999353, 49631246523618756274]

cp's OEIS Frontend

A216333 Number of horizontal and antidiagonal neighbor colorings of the even squares of an nX3 array with new integer colors introduced in row major order.

Table of values

List of values