A298405 - cp's OEIS frontend

A298405 a(n) = 2*a(n-1) - a(n-3) + a(ceiling(n/2)), where a(0) = 1, a(1) = 2, a(2) = 3.

n	a(n)
0	1
1	2
2	3
3	8
4	17
5	39
6	78
7	156
8	290
9	541
10	965
11	1718
12	2973
13	5137
14	8712
15	14741
16	24635
17	41099
18	67998
19	112326
20	184518
21	302756
22	494904
23	808263
24	1316743
25	2143719
26	3484312
27	5660593
28	9186179
29	14902787
30	24159722
31	39157900
32	63437648
33	102756673
34	166396545
35	269423440

[1, 2, 3, 8, 17, 39, 78, 156, 290, 541, 965, 1718, 2973, 5137, 8712, 14741, 24635, 41099, 67998, 112326, 184518, 302756, 494904, 808263, 1316743, 2143719, 3484312, 5660593, 9186179, 14902787, 24159722, 39157900, 63437648, 102756673, 166396545, 269423440]

cp's OEIS Frontend

A298405 a(n) = 2*a(n-1) - a(n-3) + a(ceiling(n/2)), where a(0) = 1, a(1) = 2, a(2) = 3.

Table of values

List of values