A249709 - cp's OEIS frontend

A249709 Number of length 3+3 0..n arrays with every four consecutive terms having the maximum of some two terms equal to the minimum of the remaining two terms.

n	a(n)
1	20
2	125
3	440
4	1153
5	2524
6	4893
7	8688
8	14433
9	22756
10	34397
11	50216
12	71201
13	98476
14	133309
15	177120
16	231489
17	298164
18	379069
19	476312
20	592193
21	729212
22	890077
23	1077712
24	1295265
25	1546116
26	1833885
27	2162440
28	2535905
29	2958668
30	3435389
31	3971008
32	4570753

[20, 125, 440, 1153, 2524, 4893, 8688, 14433, 22756, 34397, 50216, 71201, 98476, 133309, 177120, 231489, 298164, 379069, 476312, 592193, 729212, 890077, 1077712, 1295265, 1546116, 1833885, 2162440, 2535905, 2958668, 3435389, 3971008, 4570753]

cp's OEIS Frontend

A249709 Number of length 3+3 0..n arrays with every four consecutive terms having the maximum of some two terms equal to the minimum of the remaining two terms.

Table of values

List of values