A253219 - cp's OEIS frontend

A253219 Number of n X 4 nonnegative integer arrays with upper left 0 and lower right its king-move distance away minus 2 and every value within 2 of its king move distance from the upper left and every value increasing by 0 or 1 with every step right, diagonally se or down.

n	a(n)
1	3
2	9
3	19
4	19
5	268
6	1249
7	3140
8	5986
9	9792
10	14558
11	20284
12	26970
13	34616
14	43222
15	52788
16	63314
17	74800
18	87246
19	100652
20	115018
21	130344
22	146630
23	163876
24	182082
25	201248
26	221374
27	242460
28	264506
29	287512
30	311478
31	336404
32	362290
33	389136
34	416942
35	445708

[3, 9, 19, 19, 268, 1249, 3140, 5986, 9792, 14558, 20284, 26970, 34616, 43222, 52788, 63314, 74800, 87246, 100652, 115018, 130344, 146630, 163876, 182082, 201248, 221374, 242460, 264506, 287512, 311478, 336404, 362290, 389136, 416942, 445708]

cp's OEIS Frontend

A253219 Number of n X 4 nonnegative integer arrays with upper left 0 and lower right its king-move distance away minus 2 and every value within 2 of its king move distance from the upper left and every value increasing by 0 or 1 with every step right, diagonally se or down.

Table of values

List of values