A250814 - cp's OEIS frontend

A250814 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 min(x(i,j),x(i-1,j)) in the j direction.

n	a(n)
1	129
2	379
3	873
4	1731
5	3097
6	5139
7	8049
8	12043
9	17361
10	24267
11	33049
12	44019
13	57513
14	73891
15	93537
16	116859
17	144289
18	176283
19	213321
20	255907
21	304569
22	359859
23	422353
24	492651
25	571377
26	659179
27	756729
28	864723
29	983881
30	1114947
31	1258689
32	1415899

[129, 379, 873, 1731, 3097, 5139, 8049, 12043, 17361, 24267, 33049, 44019, 57513, 73891, 93537, 116859, 144289, 176283, 213321, 255907, 304569, 359859, 422353, 492651, 571377, 659179, 756729, 864723, 983881, 1114947, 1258689, 1415899]

cp's OEIS Frontend

A250814 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 min(x(i,j),x(i-1,j)) in the j direction.

Table of values

List of values