A253010 - cp's OEIS frontend

A253010 Number of nX7 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	20
2	231
3	2902
4	33533
5	309990
6	2327062
7	14697256
8	541365583
9	9617848524
10	90094114144
11	499454404412
12	1875291094664
13	5288570216780
14	12109231279152
15	23836473347284
16	42007667355832
17	68169527721372
18	103870860371584

[20, 231, 2902, 33533, 309990, 2327062, 14697256, 541365583, 9617848524, 90094114144, 499454404412, 1875291094664, 5288570216780, 12109231279152, 23836473347284, 42007667355832, 68169527721372, 103870860371584]

cp's OEIS Frontend

A253010 Number of nX7 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