A233063 - cp's OEIS frontend

A233063 Number of (2+1) X (n+1) 0..1 arrays x(i,j) with row sums sum{x(i,j), j=1..n+1} nondecreasing, and column sums sum{i*x(i,j), i=1..2+1} nondecreasing.

n	a(n)
1	16
2	47
3	130
4	319
5	755
6	1680
7	3673
8	7751
9	16254
10	33352
11	68448
12	138469
13	281122
14	564810
15	1140621
16	2284335
17	4601127
18	9201288
19	18508319
20	36987885
21	74343834
22	148524185
23	298379462
24	596003105
25	1196923732
26	2390589937
27	4799574872
28	9585538381

[16, 47, 130, 319, 755, 1680, 3673, 7751, 16254, 33352, 68448, 138469, 281122, 564810, 1140621, 2284335, 4601127, 9201288, 18508319, 36987885, 74343834, 148524185, 298379462, 596003105, 1196923732, 2390589937, 4799574872, 9585538381]

cp's OEIS Frontend

A233063 Number of (2+1) X (n+1) 0..1 arrays x(i,j) with row sums sum{x(i,j), j=1..n+1} nondecreasing, and column sums sum{i*x(i,j), i=1..2+1} nondecreasing.

Table of values

List of values