A065435 - cp's OEIS frontend

A065435 a(3) = 2, a(4) = 3; for n > 4, a(n) = {a(n-2)}+{a(n-1)}, where {a} means largest prime <= a.

n	a(n)
3	2
4	3
5	5
6	8
7	12
8	18
9	28
10	40
11	60
12	96
13	148
14	228
15	366
16	586
17	936
18	1506
19	2428
20	3922
21	6342
22	10256
23	16590
24	26826
25	43394
26	70212
27	113598
28	183798
29	297388
30	481174
31	778548
32	1259712
33	2038242
34	3297918
35	5336130
36	8634042
37	13970112
38	22604076
39	36574162

[2, 3, 5, 8, 12, 18, 28, 40, 60, 96, 148, 228, 366, 586, 936, 1506, 2428, 3922, 6342, 10256, 16590, 26826, 43394, 70212, 113598, 183798, 297388, 481174, 778548, 1259712, 2038242, 3297918, 5336130, 8634042, 13970112, 22604076, 36574162]

cp's OEIS Frontend

A065435 a(3) = 2, a(4) = 3; for n > 4, a(n) = {a(n-2)}+{a(n-1)}, where {a} means largest prime <= a.

Table of values

List of values