A050416 - cp's OEIS frontend

A050416 a(1)=a(2)=1, then a(n+1) = floor(a(n)/3) if this is not among 0, a(1), ..., a(n); otherwise a(n+1) = a(n) + a(n-1).

n	a(n)
1	1
2	1
3	2
4	3
5	5
6	8
7	13
8	4
9	17
10	21
11	7
12	28
13	9
14	37
15	12
16	49
17	16
18	65
19	81
20	27
21	108
22	36
23	144
24	48
25	192
26	64
27	256
28	85
29	341
30	113
31	454
32	151
33	50
34	201
35	67
36	22
37	89
38	29
39	118
40	39
41	157
42	52
43	209
44	69
45	23
46	92
47	30
48	10
49	40
50	50
51	90
52	140
53	46
54	15
55	61
56	20
57	6
58	26
59	32

[1, 1, 2, 3, 5, 8, 13, 4, 17, 21, 7, 28, 9, 37, 12, 49, 16, 65, 81, 27, 108, 36, 144, 48, 192, 64, 256, 85, 341, 113, 454, 151, 50, 201, 67, 22, 89, 29, 118, 39, 157, 52, 209, 69, 23, 92, 30, 10, 40, 50, 90, 140, 46, 15, 61, 20, 6, 26, 32]

cp's OEIS Frontend

A050416 a(1)=a(2)=1, then a(n+1) = floor(a(n)/3) if this is not among 0, a(1), ..., a(n); otherwise a(n+1) = a(n) + a(n-1).

Table of values

List of values

n	a(n)
1	1
2	1
3	2
4	3
5	5
6	8
7	13
8	4
9	17
10	21
11	7
12	28
13	9
14	37
15	12
16	49
17	16
18	65
19	81
20	27
21	108
22	36
23	144
24	48
25	192
26	64
27	256
28	85
29	341
30	113
31	454
32	151
33	50
34	201
35	67
36	22
37	89
38	29
39	118
40	39
41	157
42	52
43	209
44	69
45	23
46	92
47	30
48	10
49	40
50	50
51	90
52	140
53	46
54	15
55	61
56	20
57	6
58	26
59	32

n	a(n)
1	1
2	1
3	2
4	3
5	5
6	8
7	13
8	4
9	17
10	21
11	7
12	28
13	9
14	37
15	12
16	49
17	16
18	65
19	81
20	27
21	108
22	36
23	144
24	48
25	192
26	64
27	256
28	85
29	341
30	113
31	454
32	151
33	50
34	201
35	67
36	22
37	89
38	29
39	118
40	39
41	157
42	52
43	209
44	69
45	23
46	92
47	30
48	10
49	40
50	50
51	90
52	140
53	46
54	15
55	61
56	20
57	6
58	26
59	32

n	a(n)
1	1
2	1
3	2
4	3
5	5
6	8
7	13
8	4
9	17
10	21
11	7
12	28
13	9
14	37
15	12
16	49
17	16
18	65
19	81
20	27
21	108
22	36
23	144
24	48
25	192
26	64
27	256
28	85
29	341
30	113
31	454
32	151
33	50
34	201
35	67
36	22
37	89
38	29
39	118
40	39
41	157
42	52
43	209
44	69
45	23
46	92
47	30
48	10
49	40
50	50
51	90
52	140
53	46
54	15
55	61
56	20
57	6
58	26
59	32