A252817 - cp's OEIS frontend

A252817 Number of n X 5 nonnegative integer arrays with upper left 0 and every value within 2 of its city block distance from the upper left and every value increasing by 0 or 1 with every step right or down.

n	a(n)
1	11
2	81
3	468
4	2078
5	7564
6	23664
7	65711
8	165685
9	385736
10	839799
11	1726761
12	3379640
13	6336411
14	11439478
15	19972358
16	33843927
17	55832593
18	89905021
19	141626554
20	218683266
21	331538662
22	494251420
23	725484265
24	1049738089
25	1498849798

[11, 81, 468, 2078, 7564, 23664, 65711, 165685, 385736, 839799, 1726761, 3379640, 6336411, 11439478, 19972358, 33843927, 55832593, 89905021, 141626554, 218683266, 331538662, 494251420, 725484265, 1049738089, 1498849798]

cp's OEIS Frontend

A252817 Number of n X 5 nonnegative integer arrays with upper left 0 and every value within 2 of its city block distance from the upper left and every value increasing by 0 or 1 with every step right or down.

Table of values

List of values