A076736 - cp's OEIS frontend

A076736 Let u(1) = u(2) = u(3) = 2, u(n) = (1 + u(n-1)*u(n-2))/u(n-3); then a(n) is the denominator of u(n).

n	a(n)
1	1
2	1
3	1
4	2
5	1
6	4
7	2
8	8
9	4
10	16
11	8
12	32
13	16
14	64
15	32
16	128
17	64
18	256
19	128
20	512
21	256
22	1024
23	512
24	2048
25	1024
26	4096
27	2048
28	8192
29	4096
30	16384
31	8192
32	32768
33	16384
34	65536
35	32768
36	131072
37	65536
38	262144
39	131072
40	524288
41	262144
42	1048576
43	524288
44	2097152

[1, 1, 1, 2, 1, 4, 2, 8, 4, 16, 8, 32, 16, 64, 32, 128, 64, 256, 128, 512, 256, 1024, 512, 2048, 1024, 4096, 2048, 8192, 4096, 16384, 8192, 32768, 16384, 65536, 32768, 131072, 65536, 262144, 131072, 524288, 262144, 1048576, 524288, 2097152]

cp's OEIS Frontend

A076736 Let u(1) = u(2) = u(3) = 2, u(n) = (1 + u(n-1)*u(n-2))/u(n-3); then a(n) is the denominator of u(n).

Table of values

List of values