A204699 - cp's OEIS frontend

A204699 Number of n X 2 0..2 arrays with no occurrence of three equal elements in a row horizontally, vertically or nw-to-se diagonally, and new values 0..2 introduced in row major order.

n	a(n)
1	2
2	14
3	96
4	726
5	5400
6	40344
7	301056
8	2247264
9	16773504
10	125199744
11	934502400
12	6975223296
13	52063770624
14	388609284096
15	2900619165696
16	21650516238336
17	161601653145600
18	1206211160408064
19	9003282670288896
20	67201416721465344

[2, 14, 96, 726, 5400, 40344, 301056, 2247264, 16773504, 125199744, 934502400, 6975223296, 52063770624, 388609284096, 2900619165696, 21650516238336, 161601653145600, 1206211160408064, 9003282670288896, 67201416721465344]

cp's OEIS Frontend

A204699 Number of n X 2 0..2 arrays with no occurrence of three equal elements in a row horizontally, vertically or nw-to-se diagonally, and new values 0..2 introduced in row major order.

Table of values

List of values