A250810 - cp's OEIS frontend

A250810 Number of (n+1) X (6+1) 0..2 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction.

n	a(n)
1	1296
2	5139
3	18537
4	62469
5	201741
6	634509
7	1962717
8	6007149
9	18260061
10	55258029
11	166730397
12	502104429
13	1510140381
14	4538075949
15	13629538077
16	40919235309
17	122818948701
18	368579332269
19	1105982969757
20	3318438855789
21	9956296461021

[1296, 5139, 18537, 62469, 201741, 634509, 1962717, 6007149, 18260061, 55258029, 166730397, 502104429, 1510140381, 4538075949, 13629538077, 40919235309, 122818948701, 368579332269, 1105982969757, 3318438855789, 9956296461021]

cp's OEIS Frontend

A250810 Number of (n+1) X (6+1) 0..2 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction.

Table of values

List of values