A355072 - cp's OEIS frontend

A355072 a(0) = 0, a(1) = 1; for n > 1, a(n) is the smallest positive number whose sum a(n) + a(n-1) is distinct from all previous sums, a(i) + a(i-1), i=1..n-1, whose product a(n) * a(n-1) is distinct from all previous products, a(i) * a(i-1), i=1..n-1, and whose difference |a(n) - a(n-1)| is distinct from all previous differences, |a(i) - a(i-1)|, i=1..n-1.

n	a(n)
0	0
1	1
2	1
3	3
4	6
5	1
6	5
7	11
8	1
9	9
10	16
11	1
12	10
13	21
14	1
15	13
16	26
17	1
18	17
19	3
20	20
21	1
22	23
23	5
24	28
25	1
26	25
27	46
28	1
29	29
30	3
31	32
32	2
33	34
34	3
35	37
36	1
37	40
38	2
39	42
40	1
41	44
42	2
43	46
44	9
45	42
46	7
47	53
48	1
49	49
50	96
51	2
52	55
53	4
54	54
55	103
56	1
57	61
58	2
59	59
60	5
61	60
62	116
63	1
64	65
65	2
66	67
67	1
68	69
69	7
70	65
71	126
72	1
73	72
74	5
75	74
76	1
77	73
78	143
79	1
80	77
81	3
82	78
83	155

[0, 1, 1, 3, 6, 1, 5, 11, 1, 9, 16, 1, 10, 21, 1, 13, 26, 1, 17, 3, 20, 1, 23, 5, 28, 1, 25, 46, 1, 29, 3, 32, 2, 34, 3, 37, 1, 40, 2, 42, 1, 44, 2, 46, 9, 42, 7, 53, 1, 49, 96, 2, 55, 4, 54, 103, 1, 61, 2, 59, 5, 60, 116, 1, 65, 2, 67, 1, 69, 7, 65, 126, 1, 72, 5, 74, 1, 73, 143, 1, 77, 3, 78, 155]

cp's OEIS Frontend

Table of values

List of values

n	a(n)
0	0
1	1
2	1
3	3
4	6
5	1
6	5
7	11
8	1
9	9
10	16
11	1
12	10
13	21
14	1
15	13
16	26
17	1
18	17
19	3
20	20
21	1
22	23
23	5
24	28
25	1
26	25
27	46
28	1
29	29
30	3
31	32
32	2
33	34
34	3
35	37
36	1
37	40
38	2
39	42
40	1
41	44
42	2
43	46
44	9
45	42
46	7
47	53
48	1
49	49
50	96
51	2
52	55
53	4
54	54
55	103
56	1
57	61
58	2
59	59
60	5
61	60
62	116
63	1
64	65
65	2
66	67
67	1
68	69
69	7
70	65
71	126
72	1
73	72
74	5
75	74
76	1
77	73
78	143
79	1
80	77
81	3
82	78
83	155

n	a(n)
0	0
1	1
2	1
3	3
4	6
5	1
6	5
7	11
8	1
9	9
10	16
11	1
12	10
13	21
14	1
15	13
16	26
17	1
18	17
19	3
20	20
21	1
22	23
23	5
24	28
25	1
26	25
27	46
28	1
29	29
30	3
31	32
32	2
33	34
34	3
35	37
36	1
37	40
38	2
39	42
40	1
41	44
42	2
43	46
44	9
45	42
46	7
47	53
48	1
49	49
50	96
51	2
52	55
53	4
54	54
55	103
56	1
57	61
58	2
59	59
60	5
61	60
62	116
63	1
64	65
65	2
66	67
67	1
68	69
69	7
70	65
71	126
72	1
73	72
74	5
75	74
76	1
77	73
78	143
79	1
80	77
81	3
82	78
83	155

n	a(n)
0	0
1	1
2	1
3	3
4	6
5	1
6	5
7	11
8	1
9	9
10	16
11	1
12	10
13	21
14	1
15	13
16	26
17	1
18	17
19	3
20	20
21	1
22	23
23	5
24	28
25	1
26	25
27	46
28	1
29	29
30	3
31	32
32	2
33	34
34	3
35	37
36	1
37	40
38	2
39	42
40	1
41	44
42	2
43	46
44	9
45	42
46	7
47	53
48	1
49	49
50	96
51	2
52	55
53	4
54	54
55	103
56	1
57	61
58	2
59	59
60	5
61	60
62	116
63	1
64	65
65	2
66	67
67	1
68	69
69	7
70	65
71	126
72	1
73	72
74	5
75	74
76	1
77	73
78	143
79	1
80	77
81	3
82	78
83	155