A329596 - cp's OEIS frontend

A329596 A variation of Recamán's sequence (A005132): a(0) = 0; a(1) = 1; a(2) = 3; for n > 2, a(n) = sopfr(a(n-1))- sopfr(n) if positive and not already in the sequence, otherwise a(n) = sopfr(a(n-1)) + sopfr(n).

n	a(n)
0	0
1	1
2	3
3	6
4	9
5	11
6	16
7	15
8	2
9	8
10	13
11	24
12	16
13	21
14	19
15	27
16	17
17	34
18	27
19	28
20	20
21	19
22	32
23	33
24	5
25	15
26	23
27	14
28	20
29	38
30	31
31	62
32	43
33	29
34	10
35	19
36	29
37	66
38	37
39	53
40	42
41	53
42	41
43	84
44	29
45	18
46	33
47	61
48	50
49	26
50	27
51	29
52	12
53	60
54	23
55	7
56	20
57	31
58	62
59	92
60	39
61	77
62	51
63	33
64	26
65	33
66	30
67	77
68	39
69	42

[0, 1, 3, 6, 9, 11, 16, 15, 2, 8, 13, 24, 16, 21, 19, 27, 17, 34, 27, 28, 20, 19, 32, 33, 5, 15, 23, 14, 20, 38, 31, 62, 43, 29, 10, 19, 29, 66, 37, 53, 42, 53, 41, 84, 29, 18, 33, 61, 50, 26, 27, 29, 12, 60, 23, 7, 20, 31, 62, 92, 39, 77, 51, 33, 26, 33, 30, 77, 39, 42]

cp's OEIS Frontend

A329596 A variation of Recamán's sequence (A005132): a(0) = 0; a(1) = 1; a(2) = 3; for n > 2, a(n) = sopfr(a(n-1))- sopfr(n) if positive and not already in the sequence, otherwise a(n) = sopfr(a(n-1)) + sopfr(n).

Table of values

List of values

n	a(n)
0	0
1	1
2	3
3	6
4	9
5	11
6	16
7	15
8	2
9	8
10	13
11	24
12	16
13	21
14	19
15	27
16	17
17	34
18	27
19	28
20	20
21	19
22	32
23	33
24	5
25	15
26	23
27	14
28	20
29	38
30	31
31	62
32	43
33	29
34	10
35	19
36	29
37	66
38	37
39	53
40	42
41	53
42	41
43	84
44	29
45	18
46	33
47	61
48	50
49	26
50	27
51	29
52	12
53	60
54	23
55	7
56	20
57	31
58	62
59	92
60	39
61	77
62	51
63	33
64	26
65	33
66	30
67	77
68	39
69	42

n	a(n)
0	0
1	1
2	3
3	6
4	9
5	11
6	16
7	15
8	2
9	8
10	13
11	24
12	16
13	21
14	19
15	27
16	17
17	34
18	27
19	28
20	20
21	19
22	32
23	33
24	5
25	15
26	23
27	14
28	20
29	38
30	31
31	62
32	43
33	29
34	10
35	19
36	29
37	66
38	37
39	53
40	42
41	53
42	41
43	84
44	29
45	18
46	33
47	61
48	50
49	26
50	27
51	29
52	12
53	60
54	23
55	7
56	20
57	31
58	62
59	92
60	39
61	77
62	51
63	33
64	26
65	33
66	30
67	77
68	39
69	42

n	a(n)
0	0
1	1
2	3
3	6
4	9
5	11
6	16
7	15
8	2
9	8
10	13
11	24
12	16
13	21
14	19
15	27
16	17
17	34
18	27
19	28
20	20
21	19
22	32
23	33
24	5
25	15
26	23
27	14
28	20
29	38
30	31
31	62
32	43
33	29
34	10
35	19
36	29
37	66
38	37
39	53
40	42
41	53
42	41
43	84
44	29
45	18
46	33
47	61
48	50
49	26
50	27
51	29
52	12
53	60
54	23
55	7
56	20
57	31
58	62
59	92
60	39
61	77
62	51
63	33
64	26
65	33
66	30
67	77
68	39
69	42