A216085 - cp's OEIS frontend

A216085 Number of horizontal and antidiagonal neighbor colorings of the odd squares of a 3Xn array with new integer colors introduced in row major order.

n	a(n)
1	1
2	3
3	5
4	42
5	136
6	2440
7	10900
8	322776
9	1805632
10	77360796
11	514264344
12	29562890886
13	226109935520
14	16604827619828
15	142953007039492
16	12954736337254696
17	123560080110698296
18	13465808369740333664
19	140585883811112551960

[1, 3, 5, 42, 136, 2440, 10900, 322776, 1805632, 77360796, 514264344, 29562890886, 226109935520, 16604827619828, 142953007039492, 12954736337254696, 123560080110698296, 13465808369740333664, 140585883811112551960]

cp's OEIS Frontend

A216085 Number of horizontal and antidiagonal neighbor colorings of the odd squares of a 3Xn array with new integer colors introduced in row major order.

Table of values

List of values