A303217 - cp's OEIS frontend

A303217 A(n,k) is the n-th index of a Fibonacci number with exactly k distinct prime factors; square array A(n,k), n>=1, k>=1, read by antidiagonals.

n	a(n)
1	3
2	8
3	4
4	15
5	9
6	5
7	20
8	16
9	10
10	6
11	30
12	24
13	18
14	12
15	7
16	40
17	36
18	27
19	21
20	14
21	11
22	70
23	48
24	42
25	28
26	33
27	19
28	13
29	60
30	81
31	54
32	44
33	32
34	35
35	22
36	17
37	80
38	72
39	104
40	56
41	45
42	52
43	37
44	25
45	23
46	90
47	84
48	110
49	105
50	64
51	50
52	55
53	38
54	26
55	29
56	140
57	126
58	88
59	112
60	136
61	78
62	57
63	74
64	39
65	31
66	43

[3, 8, 4, 15, 9, 5, 20, 16, 10, 6, 30, 24, 18, 12, 7, 40, 36, 27, 21, 14, 11, 70, 48, 42, 28, 33, 19, 13, 60, 81, 54, 44, 32, 35, 22, 17, 80, 72, 104, 56, 45, 52, 37, 25, 23, 90, 84, 110, 105, 64, 50, 55, 38, 26, 29, 140, 126, 88, 112, 136, 78, 57, 74, 39, 31, 43]

cp's OEIS Frontend

A303217 A(n,k) is the n-th index of a Fibonacci number with exactly k distinct prime factors; square array A(n,k), n>=1, k>=1, read by antidiagonals.

Table of values

List of values

n	a(n)
1	3
2	8
3	4
4	15
5	9
6	5
7	20
8	16
9	10
10	6
11	30
12	24
13	18
14	12
15	7
16	40
17	36
18	27
19	21
20	14
21	11
22	70
23	48
24	42
25	28
26	33
27	19
28	13
29	60
30	81
31	54
32	44
33	32
34	35
35	22
36	17
37	80
38	72
39	104
40	56
41	45
42	52
43	37
44	25
45	23
46	90
47	84
48	110
49	105
50	64
51	50
52	55
53	38
54	26
55	29
56	140
57	126
58	88
59	112
60	136
61	78
62	57
63	74
64	39
65	31
66	43

n	a(n)
1	3
2	8
3	4
4	15
5	9
6	5
7	20
8	16
9	10
10	6
11	30
12	24
13	18
14	12
15	7
16	40
17	36
18	27
19	21
20	14
21	11
22	70
23	48
24	42
25	28
26	33
27	19
28	13
29	60
30	81
31	54
32	44
33	32
34	35
35	22
36	17
37	80
38	72
39	104
40	56
41	45
42	52
43	37
44	25
45	23
46	90
47	84
48	110
49	105
50	64
51	50
52	55
53	38
54	26
55	29
56	140
57	126
58	88
59	112
60	136
61	78
62	57
63	74
64	39
65	31
66	43

n	a(n)
1	3
2	8
3	4
4	15
5	9
6	5
7	20
8	16
9	10
10	6
11	30
12	24
13	18
14	12
15	7
16	40
17	36
18	27
19	21
20	14
21	11
22	70
23	48
24	42
25	28
26	33
27	19
28	13
29	60
30	81
31	54
32	44
33	32
34	35
35	22
36	17
37	80
38	72
39	104
40	56
41	45
42	52
43	37
44	25
45	23
46	90
47	84
48	110
49	105
50	64
51	50
52	55
53	38
54	26
55	29
56	140
57	126
58	88
59	112
60	136
61	78
62	57
63	74
64	39
65	31
66	43