A298354 - cp's OEIS frontend

A298354 a(n) = a(n-1) + a(n-2) + 2 a([(n-1)/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	22
7	43
8	73
9	130
10	217
11	373
12	616
13	1033
14	1693
15	2812
16	4591
17	7549
18	12286
19	20095
20	32641
21	53170
22	86245
23	140161
24	227152
25	368545
26	596929
27	967540
28	1566535
29	2537461
30	4107382
31	6650467
32	10763473
33	17423122
34	28195777
35	45633997
36	73844872
37	119503441

[1, 1, 1, 4, 7, 13, 22, 43, 73, 130, 217, 373, 616, 1033, 1693, 2812, 4591, 7549, 12286, 20095, 32641, 53170, 86245, 140161, 227152, 368545, 596929, 967540, 1566535, 2537461, 4107382, 6650467, 10763473, 17423122, 28195777, 45633997, 73844872, 119503441]

cp's OEIS Frontend

A298354 a(n) = a(n-1) + a(n-2) + 2 a([(n-1)/2]), where a(0) = 1, a(1) = 1, a(2) = 1.

Table of values

List of values