A250772 - cp's OEIS frontend

A250772 Number of (4+1) X (n+1) 0..1 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction.

n	a(n)
1	72
2	130
3	216
4	350
5	572
6	962
7	1680
8	3046
9	5700
10	10922
11	21272
12	41870
13	82956
14	165010
15	328992
16	656822
17	1312340
18	2623226
19	5244840
20	10487902
21	20973852
22	41945570
23	83888816
24	167775110
25	335547492
26	671092042
27	1342180920
28	2684358446
29	5368713260

[72, 130, 216, 350, 572, 962, 1680, 3046, 5700, 10922, 21272, 41870, 82956, 165010, 328992, 656822, 1312340, 2623226, 5244840, 10487902, 20973852, 41945570, 83888816, 167775110, 335547492, 671092042, 1342180920, 2684358446, 5368713260]

cp's OEIS Frontend

A250772 Number of (4+1) X (n+1) 0..1 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction.

Table of values

List of values