A324799 - cp's OEIS frontend

A324799 Symmetric square array read by antidiagonals: T(n,k) = p(n)p(k)-p(nk), where p(i) = prime(i), for n>=1, k>=1.

n	a(n)
1	2
2	3
3	3
4	5
5	2
6	5
7	7
8	2
9	2
10	7
11	11
12	2
13	2
14	2
15	11
16	13
17	4
18	-2
19	-2
20	4
21	13
22	17
23	2
24	8
25	-4
26	8
27	2
28	17
29	19
30	8
31	4
32	6
33	6
34	4
35	8
36	19
37	23
38	4
39	12
40	2
41	24
42	2
43	12
44	4
45	23
46	29
47	8
48	6
49	12
50	30
51	30
52	12
53	6
54	8
55	29
56	31
57	16
58	12
59	2
60	38
61	18
62	38
63	2
64	12
65	16
66	31
67	37
68	14
69	32
70	10
71	36
72	40
73	40
74	36
75	10
76	32
77	14
78	37
79	41
80	22
81	18
82	30
83	56
84	24
85	62
86	24
87	56
88	30
89	18
90	22
91	41

[2, 3, 3, 5, 2, 5, 7, 2, 2, 7, 11, 2, 2, 2, 11, 13, 4, -2, -2, 4, 13, 17, 2, 8, -4, 8, 2, 17, 19, 8, 4, 6, 6, 4, 8, 19, 23, 4, 12, 2, 24, 2, 12, 4, 23, 29, 8, 6, 12, 30, 30, 12, 6, 8, 29, 31, 16, 12, 2, 38, 18, 38, 2, 12, 16, 31, 37, 14, 32, 10, 36, 40, 40, 36, 10, 32, 14, 37, 41, 22, 18, 30, 56, 24, 62, 24, 56, 30, 18, 22, 41]

cp's OEIS Frontend

A324799 Symmetric square array read by antidiagonals: T(n,k) = p(n)p(k)-p(nk), where p(i) = prime(i), for n>=1, k>=1.

Table of values

List of values

n	a(n)
1	2
2	3
3	3
4	5
5	2
6	5
7	7
8	2
9	2
10	7
11	11
12	2
13	2
14	2
15	11
16	13
17	4
18	-2
19	-2
20	4
21	13
22	17
23	2
24	8
25	-4
26	8
27	2
28	17
29	19
30	8
31	4
32	6
33	6
34	4
35	8
36	19
37	23
38	4
39	12
40	2
41	24
42	2
43	12
44	4
45	23
46	29
47	8
48	6
49	12
50	30
51	30
52	12
53	6
54	8
55	29
56	31
57	16
58	12
59	2
60	38
61	18
62	38
63	2
64	12
65	16
66	31
67	37
68	14
69	32
70	10
71	36
72	40
73	40
74	36
75	10
76	32
77	14
78	37
79	41
80	22
81	18
82	30
83	56
84	24
85	62
86	24
87	56
88	30
89	18
90	22
91	41

n	a(n)
1	2
2	3
3	3
4	5
5	2
6	5
7	7
8	2
9	2
10	7
11	11
12	2
13	2
14	2
15	11
16	13
17	4
18	-2
19	-2
20	4
21	13
22	17
23	2
24	8
25	-4
26	8
27	2
28	17
29	19
30	8
31	4
32	6
33	6
34	4
35	8
36	19
37	23
38	4
39	12
40	2
41	24
42	2
43	12
44	4
45	23
46	29
47	8
48	6
49	12
50	30
51	30
52	12
53	6
54	8
55	29
56	31
57	16
58	12
59	2
60	38
61	18
62	38
63	2
64	12
65	16
66	31
67	37
68	14
69	32
70	10
71	36
72	40
73	40
74	36
75	10
76	32
77	14
78	37
79	41
80	22
81	18
82	30
83	56
84	24
85	62
86	24
87	56
88	30
89	18
90	22
91	41

cp's OEIS Frontend

A324799 Symmetric square array read by antidiagonals: T(n,k) = p(n)*p(k)-p(n*k), where p(i) = prime(i), for n>=1, k>=1.

Table of values

List of values

A324799 Symmetric square array read by antidiagonals: T(n,k) = p(n)p(k)-p(nk), where p(i) = prime(i), for n>=1, k>=1.

n	a(n)
1	2
2	3
3	3
4	5
5	2
6	5
7	7
8	2
9	2
10	7
11	11
12	2
13	2
14	2
15	11
16	13
17	4
18	-2
19	-2
20	4
21	13
22	17
23	2
24	8
25	-4
26	8
27	2
28	17
29	19
30	8
31	4
32	6
33	6
34	4
35	8
36	19
37	23
38	4
39	12
40	2
41	24
42	2
43	12
44	4
45	23
46	29
47	8
48	6
49	12
50	30
51	30
52	12
53	6
54	8
55	29
56	31
57	16
58	12
59	2
60	38
61	18
62	38
63	2
64	12
65	16
66	31
67	37
68	14
69	32
70	10
71	36
72	40
73	40
74	36
75	10
76	32
77	14
78	37
79	41
80	22
81	18
82	30
83	56
84	24
85	62
86	24
87	56
88	30
89	18
90	22
91	41