A289053 - cp's OEIS frontend

A289053 Array T(i,k) read by antidiagonals: position of prime(i)*prime(k) in A001358.

n	a(n)
1	1
2	3
3	2
4	9
5	6
6	4
7	17
8	13
9	7
10	5
11	40
12	26
13	19
14	11
15	8
16	56
17	48
18	31
19	23
20	15
21	10
22	90
23	75
24	61
25	39
26	28
27	18
28	12
29	114
30	103
31	79
32	68
33	44
34	34
35	20
36	14
37	164
38	135
39	122
40	94
41	81
42	54
43	37
44	24
45	16
46	253
47	199
48	172
49	152
50	118
51	101
52	65
53	49
54	30
55	21

[1, 3, 2, 9, 6, 4, 17, 13, 7, 5, 40, 26, 19, 11, 8, 56, 48, 31, 23, 15, 10, 90, 75, 61, 39, 28, 18, 12, 114, 103, 79, 68, 44, 34, 20, 14, 164, 135, 122, 94, 81, 54, 37, 24, 16, 253, 199, 172, 152, 118, 101, 65, 49, 30, 21]

cp's OEIS Frontend

A289053 Array T(i,k) read by antidiagonals: position of prime(i)*prime(k) in A001358.

Table of values

List of values

n	a(n)
1	1
2	3
3	2
4	9
5	6
6	4
7	17
8	13
9	7
10	5
11	40
12	26
13	19
14	11
15	8
16	56
17	48
18	31
19	23
20	15
21	10
22	90
23	75
24	61
25	39
26	28
27	18
28	12
29	114
30	103
31	79
32	68
33	44
34	34
35	20
36	14
37	164
38	135
39	122
40	94
41	81
42	54
43	37
44	24
45	16
46	253
47	199
48	172
49	152
50	118
51	101
52	65
53	49
54	30
55	21

n	a(n)
1	1
2	3
3	2
4	9
5	6
6	4
7	17
8	13
9	7
10	5
11	40
12	26
13	19
14	11
15	8
16	56
17	48
18	31
19	23
20	15
21	10
22	90
23	75
24	61
25	39
26	28
27	18
28	12
29	114
30	103
31	79
32	68
33	44
34	34
35	20
36	14
37	164
38	135
39	122
40	94
41	81
42	54
43	37
44	24
45	16
46	253
47	199
48	172
49	152
50	118
51	101
52	65
53	49
54	30
55	21

n	a(n)
1	1
2	3
3	2
4	9
5	6
6	4
7	17
8	13
9	7
10	5
11	40
12	26
13	19
14	11
15	8
16	56
17	48
18	31
19	23
20	15
21	10
22	90
23	75
24	61
25	39
26	28
27	18
28	12
29	114
30	103
31	79
32	68
33	44
34	34
35	20
36	14
37	164
38	135
39	122
40	94
41	81
42	54
43	37
44	24
45	16
46	253
47	199
48	172
49	152
50	118
51	101
52	65
53	49
54	30
55	21