A253222 - cp's OEIS frontend

A253222 Number of n X 7 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	15
2	81
3	504
4	3140
5	16028
6	47698
7	47698
8	649712
9	2913793
10	7415837
11	14420585
12	24015795
13	36221327
14	51039931
15	68471783
16	88516883
17	111175231
18	136446827
19	164331671
20	194829763
21	227941103
22	263665691
23	302003527
24	342954611
25	386518943

[15, 81, 504, 3140, 16028, 47698, 47698, 649712, 2913793, 7415837, 14420585, 24015795, 36221327, 51039931, 68471783, 88516883, 111175231, 136446827, 164331671, 194829763, 227941103, 263665691, 302003527, 342954611, 386518943]

cp's OEIS Frontend

A253222 Number of n X 7 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