A245845 - cp's OEIS frontend

A245845 Number of length n 0..2 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	14
8	16
9	65
10	77
11	356
12	448
13	2279
14	2959
15	15572
16	20762
17	111641
18	151205
19	824798
20	1131376
21	6239399
22	8640935
23	48063692
24	67082670
25	375759443
26	527790821
27	2973583640
28	4198991910
29	23773324409
30	33722329677
31	191725694792
32	273021483730

[1, 1, 2, 2, 5, 5, 14, 16, 65, 77, 356, 448, 2279, 2959, 15572, 20762, 111641, 151205, 824798, 1131376, 6239399, 8640935, 48063692, 67082670, 375759443, 527790821, 2973583640, 4198991910, 23773324409, 33722329677, 191725694792, 273021483730]

cp's OEIS Frontend

A245845 Number of length n 0..2 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