A252827 - cp's OEIS frontend

A252827 Number of n X 7 nonnegative integer arrays with upper left 0 and every value within 3 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	42
2	729
3	10761
4	125892
5	1165921
6	8807722
7	55960651
8	306796310
9	1481748658
10	6411737114
11	25203579317
12	91037124979
13	305083525901
14	956286103952
15	2823092600299
16	7895877354183
17	21029532417878
18	53571661955209

[42, 729, 10761, 125892, 1165921, 8807722, 55960651, 306796310, 1481748658, 6411737114, 25203579317, 91037124979, 305083525901, 956286103952, 2823092600299, 7895877354183, 21029532417878, 53571661955209]

cp's OEIS Frontend

A252827 Number of n X 7 nonnegative integer arrays with upper left 0 and every value within 3 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