A253006 - cp's OEIS frontend

A253006 Number of n X 3 nonnegative integer arrays with upper left 0 and lower right its king-move distance away minus 3 and every value increasing by 0 or 1 with every step right, diagonally se or down.

n	a(n)
1	0
2	0
3	0
4	1
5	54
6	632
7	2902
8	8416
9	18770
10	35564
11	60398
12	94872
13	140586
14	199140
15	272134
16	361168
17	467842
18	593756
19	740510
20	909704
21	1102938
22	1321812
23	1567926
24	1842880
25	2148274
26	2485708
27	2856782
28	3263096
29	3706250
30	4187844
31	4709478
32	5272752
33	5879266

[0, 0, 0, 1, 54, 632, 2902, 8416, 18770, 35564, 60398, 94872, 140586, 199140, 272134, 361168, 467842, 593756, 740510, 909704, 1102938, 1321812, 1567926, 1842880, 2148274, 2485708, 2856782, 3263096, 3706250, 4187844, 4709478, 5272752, 5879266]

cp's OEIS Frontend

A253006 Number of n X 3 nonnegative integer arrays with upper left 0 and lower right its king-move distance away minus 3 and every value increasing by 0 or 1 with every step right, diagonally se or down.

Table of values

List of values