A256466 - cp's OEIS frontend

A256466 Fermi-Dirac analog of EKG sequence (A064413): a(1)=1; a(2)=2; for n > 2, a(n) = smallest number not already used which shares a Fermi-Dirac factor with a(n-1).

n	a(n)
1	1
2	2
3	6
4	3
5	12
6	4
7	8
8	10
9	5
10	15
11	20
12	24
13	14
14	7
15	21
16	27
17	9
18	18
19	22
20	11
21	33
22	30
23	26
24	13
25	39
26	42
27	28
28	35
29	40
30	32
31	16
32	48
33	51
34	17
35	34
36	38
37	19
38	57
39	54
40	36
41	44
42	52
43	56
44	46
45	23
46	69
47	60
48	45
49	55
50	65
51	70
52	50
53	25
54	75
55	66
56	58
57	29
58	87
59	78
60	62
61	31
62	93
63	84
64	63
65	72
66	64
67	68

[1, 2, 6, 3, 12, 4, 8, 10, 5, 15, 20, 24, 14, 7, 21, 27, 9, 18, 22, 11, 33, 30, 26, 13, 39, 42, 28, 35, 40, 32, 16, 48, 51, 17, 34, 38, 19, 57, 54, 36, 44, 52, 56, 46, 23, 69, 60, 45, 55, 65, 70, 50, 25, 75, 66, 58, 29, 87, 78, 62, 31, 93, 84, 63, 72, 64, 68]

cp's OEIS Frontend

A256466 Fermi-Dirac analog of EKG sequence (A064413): a(1)=1; a(2)=2; for n > 2, a(n) = smallest number not already used which shares a Fermi-Dirac factor with a(n-1).

Table of values

List of values

n	a(n)
1	1
2	2
3	6
4	3
5	12
6	4
7	8
8	10
9	5
10	15
11	20
12	24
13	14
14	7
15	21
16	27
17	9
18	18
19	22
20	11
21	33
22	30
23	26
24	13
25	39
26	42
27	28
28	35
29	40
30	32
31	16
32	48
33	51
34	17
35	34
36	38
37	19
38	57
39	54
40	36
41	44
42	52
43	56
44	46
45	23
46	69
47	60
48	45
49	55
50	65
51	70
52	50
53	25
54	75
55	66
56	58
57	29
58	87
59	78
60	62
61	31
62	93
63	84
64	63
65	72
66	64
67	68

n	a(n)
1	1
2	2
3	6
4	3
5	12
6	4
7	8
8	10
9	5
10	15
11	20
12	24
13	14
14	7
15	21
16	27
17	9
18	18
19	22
20	11
21	33
22	30
23	26
24	13
25	39
26	42
27	28
28	35
29	40
30	32
31	16
32	48
33	51
34	17
35	34
36	38
37	19
38	57
39	54
40	36
41	44
42	52
43	56
44	46
45	23
46	69
47	60
48	45
49	55
50	65
51	70
52	50
53	25
54	75
55	66
56	58
57	29
58	87
59	78
60	62
61	31
62	93
63	84
64	63
65	72
66	64
67	68

n	a(n)
1	1
2	2
3	6
4	3
5	12
6	4
7	8
8	10
9	5
10	15
11	20
12	24
13	14
14	7
15	21
16	27
17	9
18	18
19	22
20	11
21	33
22	30
23	26
24	13
25	39
26	42
27	28
28	35
29	40
30	32
31	16
32	48
33	51
34	17
35	34
36	38
37	19
38	57
39	54
40	36
41	44
42	52
43	56
44	46
45	23
46	69
47	60
48	45
49	55
50	65
51	70
52	50
53	25
54	75
55	66
56	58
57	29
58	87
59	78
60	62
61	31
62	93
63	84
64	63
65	72
66	64
67	68