A219884 - cp's OEIS frontend

A219884 Number of 3 X n arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 3 X n array.

n	a(n)
1	10
2	21
3	47
4	129
5	292
6	600
7	1158
8	2148
9	3863
10	6784
11	11679
12	19763
13	32938
14	54144
15	87860
16	140803
17	222883
18	348483
19	538145
20	820756
21	1236342
22	1839593
23	2704258
24	3928566
25	5641847
26	8012546
27	11257843
28	15655113
29	21555482
30	29399758
31	39737040
32	53246333

[10, 21, 47, 129, 292, 600, 1158, 2148, 3863, 6784, 11679, 19763, 32938, 54144, 87860, 140803, 222883, 348483, 538145, 820756, 1236342, 1839593, 2704258, 3928566, 5641847, 8012546, 11257843, 15655113, 21555482, 29399758, 39737040, 53246333]

cp's OEIS Frontend

A219884 Number of 3 X n arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 3 X n array.

Table of values

List of values