A183722 - cp's OEIS frontend

A183722 1/12 the number of (n+1) X 3 0..5 arrays with every 2 X 2 subblock strictly increasing clockwise or counterclockwise with one decrease, and at least two adjacent blocks having the same increasing direction.

n	a(n)
1	1
2	2
3	29
4	388
5	4170
6	41423
7	388998
8	3528126
9	31206553
10	270945278
11	2318825000
12	19619049541
13	164448364546
14	1367755750914
15	11301610770163
16	92861669073522
17	759320826126174
18	6182626278886591
19	50153160109476104
20	405492870969390486

[1, 2, 29, 388, 4170, 41423, 388998, 3528126, 31206553, 270945278, 2318825000, 19619049541, 164448364546, 1367755750914, 11301610770163, 92861669073522, 759320826126174, 6182626278886591, 50153160109476104, 405492870969390486]

cp's OEIS Frontend

A183722 1/12 the number of (n+1) X 3 0..5 arrays with every 2 X 2 subblock strictly increasing clockwise or counterclockwise with one decrease, and at least two adjacent blocks having the same increasing direction.

Table of values

List of values