A222919 - cp's OEIS frontend

A222919 Number of n X 1 0..4 arrays with no three equal values in a row horizontally or vertically, and new values 0..4 introduced in row major order.

n	a(n)
1	1
2	2
3	4
4	12
5	41
6	158
7	663
8	2944
9	13537
10	63551
11	301968
12	1444795
13	6940099
14	33411718
15	161058633
16	776930015
17	3749357128
18	18098055047
19	87370273487
20	421820387606
21	2036618058597
22	9833358788859
23	47478828272736
24	229245800095323

[1, 2, 4, 12, 41, 158, 663, 2944, 13537, 63551, 301968, 1444795, 6940099, 33411718, 161058633, 776930015, 3749357128, 18098055047, 87370273487, 421820387606, 2036618058597, 9833358788859, 47478828272736, 229245800095323]

cp's OEIS Frontend

A222919 Number of n X 1 0..4 arrays with no three equal values in a row horizontally or vertically, and new values 0..4 introduced in row major order.

Table of values

List of values