A318277 - cp's OEIS frontend

A318277 Triangle read by rows; T(n, k) is the number of divisors of A025487(n) having the same prime signature as A025487(k) where 1 <= k <= n.

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

[1, 1, 1, 1, 1, 1, 1, 2, 0, 1, 1, 1, 1, 0, 1, 1, 2, 1, 1, 0, 1, 1, 1, 1, 0, 1, 0, 1, 1, 2, 1, 1, 1, 1, 0, 1, 1, 3, 0, 3, 0, 0, 0, 0, 1, 1, 1, 1, 0, 1, 0, 1, 0, 0, 1, 1, 2, 2, 1, 0, 2, 0, 0, 0, 0, 1, 1, 2, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 3, 1, 3, 0, 2, 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 1, 0, 1]

cp's OEIS Frontend

A318277 Triangle read by rows; T(n, k) is the number of divisors of A025487(n) having the same prime signature as A025487(k) where 1 <= k <= n.

Table of values

List of values

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

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

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