A303215 - cp's OEIS frontend

A303215 A(n,k) is the n-th index of a Fibonacci number with exactly k prime factors (counted with multiplicity); square array A(n,k), n>=1, k>=1, read by antidiagonals.

n	a(n)
1	3
2	8
3	4
4	6
5	9
6	5
7	20
8	15
9	10
10	7
11	18
12	27
13	16
14	14
15	11
16	12
17	44
18	28
19	21
20	19
21	13
22	30
23	40
24	45
25	32
26	25
27	22
28	17
29	54
30	42
31	50
32	57
33	52
34	33
35	26
36	23
37	24
38	78
39	56
40	64
41	63
42	55
43	35
44	31
45	29
46	36
47	80
48	102
49	66
50	75
51	68
52	74
53	37
54	34
55	43
56	138
57	100
58	88
59	128
60	70
61	92
62	69
63	77
64	38
65	41
66	47

[3, 8, 4, 6, 9, 5, 20, 15, 10, 7, 18, 27, 16, 14, 11, 12, 44, 28, 21, 19, 13, 30, 40, 45, 32, 25, 22, 17, 54, 42, 50, 57, 52, 33, 26, 23, 24, 78, 56, 64, 63, 55, 35, 31, 29, 36, 80, 102, 66, 75, 68, 74, 37, 34, 43, 138, 100, 88, 128, 70, 92, 69, 77, 38, 41, 47]

cp's OEIS Frontend

A303215 A(n,k) is the n-th index of a Fibonacci number with exactly k prime factors (counted with multiplicity); 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	6
5	9
6	5
7	20
8	15
9	10
10	7
11	18
12	27
13	16
14	14
15	11
16	12
17	44
18	28
19	21
20	19
21	13
22	30
23	40
24	45
25	32
26	25
27	22
28	17
29	54
30	42
31	50
32	57
33	52
34	33
35	26
36	23
37	24
38	78
39	56
40	64
41	63
42	55
43	35
44	31
45	29
46	36
47	80
48	102
49	66
50	75
51	68
52	74
53	37
54	34
55	43
56	138
57	100
58	88
59	128
60	70
61	92
62	69
63	77
64	38
65	41
66	47

n	a(n)
1	3
2	8
3	4
4	6
5	9
6	5
7	20
8	15
9	10
10	7
11	18
12	27
13	16
14	14
15	11
16	12
17	44
18	28
19	21
20	19
21	13
22	30
23	40
24	45
25	32
26	25
27	22
28	17
29	54
30	42
31	50
32	57
33	52
34	33
35	26
36	23
37	24
38	78
39	56
40	64
41	63
42	55
43	35
44	31
45	29
46	36
47	80
48	102
49	66
50	75
51	68
52	74
53	37
54	34
55	43
56	138
57	100
58	88
59	128
60	70
61	92
62	69
63	77
64	38
65	41
66	47

n	a(n)
1	3
2	8
3	4
4	6
5	9
6	5
7	20
8	15
9	10
10	7
11	18
12	27
13	16
14	14
15	11
16	12
17	44
18	28
19	21
20	19
21	13
22	30
23	40
24	45
25	32
26	25
27	22
28	17
29	54
30	42
31	50
32	57
33	52
34	33
35	26
36	23
37	24
38	78
39	56
40	64
41	63
42	55
43	35
44	31
45	29
46	36
47	80
48	102
49	66
50	75
51	68
52	74
53	37
54	34
55	43
56	138
57	100
58	88
59	128
60	70
61	92
62	69
63	77
64	38
65	41
66	47