A204648 - cp's OEIS frontend

A204648 Number of (n+1) X 6 0..1 arrays with column and row pair sums b(i,j)=a(i,j)+a(i,j-1) and c(i,j)=a(i,j)+a(i-1,j) nondecreasing in column and row directions, respectively.

n	a(n)
1	80
2	137
3	284
4	571
5	1076
6	1918
7	3261
8	5329
9	8408
10	12867
11	19162
12	27859
13	39640
14	55328
15	75895
16	102489
17	136444
18	179309
19	232860
20	299131
21	380428
22	479362
23	598865
24	742225
25	913104
26	1115575
27	1354142
28	1633779
29	1959952
30	2338660
31	2776459
32	3280505
33	3858580

[80, 137, 284, 571, 1076, 1918, 3261, 5329, 8408, 12867, 19162, 27859, 39640, 55328, 75895, 102489, 136444, 179309, 232860, 299131, 380428, 479362, 598865, 742225, 913104, 1115575, 1354142, 1633779, 1959952, 2338660, 2776459, 3280505, 3858580]

cp's OEIS Frontend

A204648 Number of (n+1) X 6 0..1 arrays with column and row pair sums b(i,j)=a(i,j)+a(i,j-1) and c(i,j)=a(i,j)+a(i-1,j) nondecreasing in column and row directions, respectively.

Table of values

List of values