A298346 - cp's OEIS frontend

A298346 a(n) = a(n-1) + a(n-2) + 2 a([n/2]), where a(0) = 1, a(1) = 1, a(2) = 1.

n	a(n)
0	1
1	1
2	1
3	4
4	7
5	13
6	28
7	49
8	91
9	154
10	271
11	451
12	778
13	1285
14	2161
15	3544
16	5887
17	9613
18	15808
19	25729
20	42079
21	68350
22	111331
23	180583
24	293470
25	475609
26	771649
27	1249828
28	2025799
29	3279949
30	5312836
31	8599873
32	13924483
33	22536130
34	36479839
35	59035195
36	95546650
37	154613461

[1, 1, 1, 4, 7, 13, 28, 49, 91, 154, 271, 451, 778, 1285, 2161, 3544, 5887, 9613, 15808, 25729, 42079, 68350, 111331, 180583, 293470, 475609, 771649, 1249828, 2025799, 3279949, 5312836, 8599873, 13924483, 22536130, 36479839, 59035195, 95546650, 154613461]

cp's OEIS Frontend

A298346 a(n) = a(n-1) + a(n-2) + 2 a([n/2]), where a(0) = 1, a(1) = 1, a(2) = 1.

Table of values

List of values