A176066 - cp's OEIS frontend

A176066 Triangle read by rows: R(n,k)=semiprime(n+1) mod (semiprime(k)+1), 1<=k<=n.

n	a(n)
1	1
2	4
3	2
4	0
5	3
6	0
7	4
8	0
9	4
10	3
11	0
12	1
13	5
14	4
15	0
16	1
17	0
18	1
19	10
20	6
21	5
22	2
23	1
24	2
25	0
26	7
27	6
28	0
29	0
30	4
31	5
32	3
33	10
34	9
35	3
36	2
37	1
38	5
39	6
40	4
41	11
42	10
43	4
44	3
45	0
46	3
47	5
48	3
49	0
50	3
51	1
52	11
53	10
54	7
55	6
56	4
57	6
58	4
59	1
60	4
61	2
62	12
63	11
64	8
65	7
66	0
67	0
68	0
69	5
70	2
71	5
72	3
73	13
74	12
75	9
76	8
77	1
78	0
79	3
80	3
81	8
82	5
83	8
84	6
85	16
86	15
87	12
88	11
89	4
90	3
91	2

[1, 4, 2, 0, 3, 0, 4, 0, 4, 3, 0, 1, 5, 4, 0, 1, 0, 1, 10, 6, 5, 2, 1, 2, 0, 7, 6, 0, 0, 4, 5, 3, 10, 9, 3, 2, 1, 5, 6, 4, 11, 10, 4, 3, 0, 3, 5, 3, 0, 3, 1, 11, 10, 7, 6, 4, 6, 4, 1, 4, 2, 12, 11, 8, 7, 0, 0, 0, 5, 2, 5, 3, 13, 12, 9, 8, 1, 0, 3, 3, 8, 5, 8, 6, 16, 15, 12, 11, 4, 3, 2]

cp's OEIS Frontend

A176066 Triangle read by rows: R(n,k)=semiprime(n+1) mod (semiprime(k)+1), 1<=k<=n.

Table of values

List of values

n	a(n)
1	1
2	4
3	2
4	0
5	3
6	0
7	4
8	0
9	4
10	3
11	0
12	1
13	5
14	4
15	0
16	1
17	0
18	1
19	10
20	6
21	5
22	2
23	1
24	2
25	0
26	7
27	6
28	0
29	0
30	4
31	5
32	3
33	10
34	9
35	3
36	2
37	1
38	5
39	6
40	4
41	11
42	10
43	4
44	3
45	0
46	3
47	5
48	3
49	0
50	3
51	1
52	11
53	10
54	7
55	6
56	4
57	6
58	4
59	1
60	4
61	2
62	12
63	11
64	8
65	7
66	0
67	0
68	0
69	5
70	2
71	5
72	3
73	13
74	12
75	9
76	8
77	1
78	0
79	3
80	3
81	8
82	5
83	8
84	6
85	16
86	15
87	12
88	11
89	4
90	3
91	2

n	a(n)
1	1
2	4
3	2
4	0
5	3
6	0
7	4
8	0
9	4
10	3
11	0
12	1
13	5
14	4
15	0
16	1
17	0
18	1
19	10
20	6
21	5
22	2
23	1
24	2
25	0
26	7
27	6
28	0
29	0
30	4
31	5
32	3
33	10
34	9
35	3
36	2
37	1
38	5
39	6
40	4
41	11
42	10
43	4
44	3
45	0
46	3
47	5
48	3
49	0
50	3
51	1
52	11
53	10
54	7
55	6
56	4
57	6
58	4
59	1
60	4
61	2
62	12
63	11
64	8
65	7
66	0
67	0
68	0
69	5
70	2
71	5
72	3
73	13
74	12
75	9
76	8
77	1
78	0
79	3
80	3
81	8
82	5
83	8
84	6
85	16
86	15
87	12
88	11
89	4
90	3
91	2

n	a(n)
1	1
2	4
3	2
4	0
5	3
6	0
7	4
8	0
9	4
10	3
11	0
12	1
13	5
14	4
15	0
16	1
17	0
18	1
19	10
20	6
21	5
22	2
23	1
24	2
25	0
26	7
27	6
28	0
29	0
30	4
31	5
32	3
33	10
34	9
35	3
36	2
37	1
38	5
39	6
40	4
41	11
42	10
43	4
44	3
45	0
46	3
47	5
48	3
49	0
50	3
51	1
52	11
53	10
54	7
55	6
56	4
57	6
58	4
59	1
60	4
61	2
62	12
63	11
64	8
65	7
66	0
67	0
68	0
69	5
70	2
71	5
72	3
73	13
74	12
75	9
76	8
77	1
78	0
79	3
80	3
81	8
82	5
83	8
84	6
85	16
86	15
87	12
88	11
89	4
90	3
91	2