A245848 - cp's OEIS frontend

A245848 Number of length n 0..5 arrays with new values introduced in order from both ends, and least squares fitting to a straight line with slope zero, with a single point taken as having zero slope.

n	a(n)
1	1
2	1
3	2
4	2
5	5
6	5
7	15
8	17
9	78
10	102
11	569
12	919
13	6142
14	11170
15	86043
16	174957
17	1495234
18	3338570
19	31029867
20	74669371
21	740854138
22	1885642110
23	19616697093
24	51936661281
25	558093960576
26	1517106442790
27	16655034027581
28	46067262638225

[1, 1, 2, 2, 5, 5, 15, 17, 78, 102, 569, 919, 6142, 11170, 86043, 174957, 1495234, 3338570, 31029867, 74669371, 740854138, 1885642110, 19616697093, 51936661281, 558093960576, 1517106442790, 16655034027581, 46067262638225]

cp's OEIS Frontend

A245848 Number of length n 0..5 arrays with new values introduced in order from both ends, and least squares fitting to a straight line with slope zero, with a single point taken as having zero slope.

Table of values

List of values