A250757 - cp's OEIS frontend

A250757 Number of (2+1) X (n+1) 0..2 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing x(i,j)+x(i-1,j) in the j direction.

n	a(n)
1	105
2	237
3	423
4	663
5	957
6	1305
7	1707
8	2163
9	2673
10	3237
11	3855
12	4527
13	5253
14	6033
15	6867
16	7755
17	8697
18	9693
19	10743
20	11847
21	13005
22	14217
23	15483
24	16803
25	18177
26	19605
27	21087
28	22623
29	24213
30	25857
31	27555
32	29307
33	31113
34	32973
35	34887
36	36855
37	38877
38	40953
39	43083

[105, 237, 423, 663, 957, 1305, 1707, 2163, 2673, 3237, 3855, 4527, 5253, 6033, 6867, 7755, 8697, 9693, 10743, 11847, 13005, 14217, 15483, 16803, 18177, 19605, 21087, 22623, 24213, 25857, 27555, 29307, 31113, 32973, 34887, 36855, 38877, 40953, 43083]

cp's OEIS Frontend

A250757 Number of (2+1) X (n+1) 0..2 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing x(i,j)+x(i-1,j) in the j direction.

Table of values

List of values