A219591 - cp's OEIS frontend

A219591 Number of nX4 arrays of the minimum value of corresponding elements and their horizontal or vertical neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 nX4 array.

n	a(n)
1	10
2	34
3	233
4	1114
5	4350
6	16117
7	60252
8	226309
9	831045
10	2932198
11	9899904
12	32047091
13	99786646
14	299774977
15	871181292
16	2454943142
17	6722356023
18	17921513868
19	46593529264
20	118305418513
21	293738371262
22	713963398966
23	1700512384149

[10, 34, 233, 1114, 4350, 16117, 60252, 226309, 831045, 2932198, 9899904, 32047091, 99786646, 299774977, 871181292, 2454943142, 6722356023, 17921513868, 46593529264, 118305418513, 293738371262, 713963398966, 1700512384149]

cp's OEIS Frontend

A219591 Number of nX4 arrays of the minimum value of corresponding elements and their horizontal or vertical neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 nX4 array.

Table of values

List of values