A219681 - cp's OEIS frontend

A219681 Number of nX3 arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 nX3 array.

n	a(n)
1	6
2	8
3	31
4	99
5	269
6	655
7	1506
8	3356
9	7278
10	15335
11	31362
12	62286
13	120292
14	226281
15	415250
16	744464
17	1305597
18	2242405
19	3775972
20	6240154
21	10130551
22	16171179
23	25404010
24	39307716
25	59953312
26	90205963
27	133984022
28	196588422
29	285117878
30	408987989

[6, 8, 31, 99, 269, 655, 1506, 3356, 7278, 15335, 31362, 62286, 120292, 226281, 415250, 744464, 1305597, 2242405, 3775972, 6240154, 10130551, 16171179, 25404010, 39307716, 59953312, 90205963, 133984022, 196588422, 285117878, 408987989]

cp's OEIS Frontend

A219681 Number of nX3 arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 nX3 array.

Table of values

List of values