A222970 - cp's OEIS frontend

A222970 Number of 1 X (n+1) 0..1 arrays with every row least squares fitting to a positive-slope straight line and every column least squares fitting to a zero- or positive-slope straight line, with a single point array taken as having zero slope.

n	a(n)
1	1
2	2
3	6
4	12
5	28
6	54
7	119
8	230
9	488
10	948
11	1979
12	3860
13	7978
14	15624
15	32072
16	63014
17	128746
18	253588
19	516346
20	1019072
21	2069590
22	4091174
23	8291746
24	16412668
25	33210428
26	65808044
27	132985161
28	263755984
29	532421062
30	1056789662
31	2131312530
32	4233176854

[1, 2, 6, 12, 28, 54, 119, 230, 488, 948, 1979, 3860, 7978, 15624, 32072, 63014, 128746, 253588, 516346, 1019072, 2069590, 4091174, 8291746, 16412668, 33210428, 65808044, 132985161, 263755984, 532421062, 1056789662, 2131312530, 4233176854]

cp's OEIS Frontend

A222970 Number of 1 X (n+1) 0..1 arrays with every row least squares fitting to a positive-slope straight line and every column least squares fitting to a zero- or positive-slope straight line, with a single point array taken as having zero slope.

Table of values

List of values