A220155 - cp's OEIS frontend

A220155 Number of 3Xn arrays of the minimum value of corresponding elements and their horizontal or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 3Xn array.

n	a(n)
1	10
2	26
3	77
4	254
5	645
6	1413
7	2841
8	5412
9	9905
10	17565
11	30369
12	51437
13	85641
14	140477
15	227277
16	362851
17	571663
18	888660
19	1362889
20	2062054
21	3078183
22	4534594
23	6594369
24	9470566
25	13438421
26	18849815
27	26150305
28	35899043
29	48791933
30	65688403
31	87642197

[10, 26, 77, 254, 645, 1413, 2841, 5412, 9905, 17565, 30369, 51437, 85641, 140477, 227277, 362851, 571663, 888660, 1362889, 2062054, 3078183, 4534594, 6594369, 9470566, 13438421, 18849815, 26150305, 35899043, 48791933, 65688403, 87642197]

cp's OEIS Frontend

A220155 Number of 3Xn arrays of the minimum value of corresponding elements and their horizontal or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 3Xn array.

Table of values

List of values