A127639 - cp's OEIS frontend

A127639 A051731 * A127640, where A127640 = infinite lower triangular matrix with the sequence of primes in the main diagonal and the rest zeros.

n	a(n)
1	2
2	2
3	3
4	2
5	0
6	5
7	2
8	3
9	0
10	7
11	2
12	0
13	0
14	0
15	11
16	2
17	3
18	5
19	0
20	0
21	13
22	2
23	0
24	0
25	0
26	0
27	0
28	17
29	2
30	3
31	0
32	7
33	0
34	0
35	0
36	19
37	2
38	0
39	5
40	0
41	0
42	0
43	0
44	0
45	23
46	2
47	3
48	0
49	0
50	11
51	0
52	0
53	0
54	0
55	29
56	2
57	0
58	0
59	0
60	0
61	0
62	0
63	0
64	0
65	0
66	31
67	2
68	3
69	5
70	7
71	0
72	13
73	0
74	0
75	0
76	0
77	0
78	37
79	2
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	0
89	0
90	0
91	41
92	2
93	3
94	0
95	0
96	0
97	0
98	17
99	0
100	0

[2, 2, 3, 2, 0, 5, 2, 3, 0, 7, 2, 0, 0, 0, 11, 2, 3, 5, 0, 0, 13, 2, 0, 0, 0, 0, 0, 17, 2, 3, 0, 7, 0, 0, 0, 19, 2, 0, 5, 0, 0, 0, 0, 0, 23, 2, 3, 0, 0, 11, 0, 0, 0, 0, 29, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 31, 2, 3, 5, 7, 0, 13, 0, 0, 0, 0, 0, 37, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 41, 2, 3, 0, 0, 0, 0, 17, 0, 0]

cp's OEIS Frontend

A127639 A051731 * A127640, where A127640 = infinite lower triangular matrix with the sequence of primes in the main diagonal and the rest zeros.

Table of values

List of values

n	a(n)
1	2
2	2
3	3
4	2
5	0
6	5
7	2
8	3
9	0
10	7
11	2
12	0
13	0
14	0
15	11
16	2
17	3
18	5
19	0
20	0
21	13
22	2
23	0
24	0
25	0
26	0
27	0
28	17
29	2
30	3
31	0
32	7
33	0
34	0
35	0
36	19
37	2
38	0
39	5
40	0
41	0
42	0
43	0
44	0
45	23
46	2
47	3
48	0
49	0
50	11
51	0
52	0
53	0
54	0
55	29
56	2
57	0
58	0
59	0
60	0
61	0
62	0
63	0
64	0
65	0
66	31
67	2
68	3
69	5
70	7
71	0
72	13
73	0
74	0
75	0
76	0
77	0
78	37
79	2
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	0
89	0
90	0
91	41
92	2
93	3
94	0
95	0
96	0
97	0
98	17
99	0
100	0

n	a(n)
1	2
2	2
3	3
4	2
5	0
6	5
7	2
8	3
9	0
10	7
11	2
12	0
13	0
14	0
15	11
16	2
17	3
18	5
19	0
20	0
21	13
22	2
23	0
24	0
25	0
26	0
27	0
28	17
29	2
30	3
31	0
32	7
33	0
34	0
35	0
36	19
37	2
38	0
39	5
40	0
41	0
42	0
43	0
44	0
45	23
46	2
47	3
48	0
49	0
50	11
51	0
52	0
53	0
54	0
55	29
56	2
57	0
58	0
59	0
60	0
61	0
62	0
63	0
64	0
65	0
66	31
67	2
68	3
69	5
70	7
71	0
72	13
73	0
74	0
75	0
76	0
77	0
78	37
79	2
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	0
89	0
90	0
91	41
92	2
93	3
94	0
95	0
96	0
97	0
98	17
99	0
100	0

n	a(n)
1	2
2	2
3	3
4	2
5	0
6	5
7	2
8	3
9	0
10	7
11	2
12	0
13	0
14	0
15	11
16	2
17	3
18	5
19	0
20	0
21	13
22	2
23	0
24	0
25	0
26	0
27	0
28	17
29	2
30	3
31	0
32	7
33	0
34	0
35	0
36	19
37	2
38	0
39	5
40	0
41	0
42	0
43	0
44	0
45	23
46	2
47	3
48	0
49	0
50	11
51	0
52	0
53	0
54	0
55	29
56	2
57	0
58	0
59	0
60	0
61	0
62	0
63	0
64	0
65	0
66	31
67	2
68	3
69	5
70	7
71	0
72	13
73	0
74	0
75	0
76	0
77	0
78	37
79	2
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	0
89	0
90	0
91	41
92	2
93	3
94	0
95	0
96	0
97	0
98	17
99	0
100	0