A247073 - cp's OEIS frontend

A247073 Triangle read by rows: T(n,k) is the number of k-th prime powers up to 2^n, for k = 1 to n.

n	a(n)
1	1
2	2
3	1
4	4
5	1
6	1
7	6
8	2
9	1
10	1
11	11
12	3
13	2
14	1
15	1
16	18
17	4
18	2
19	1
20	1
21	1
22	31
23	5
24	3
25	2
26	1
27	1
28	1
29	54
30	6
31	3
32	2
33	2
34	1
35	1
36	1
37	97
38	8
39	4
40	2
41	2
42	1
43	1
44	1
45	1
46	172
47	11
48	4
49	3
50	2
51	2
52	1
53	1
54	1
55	1
56	309
57	14
58	5
59	3
60	2
61	2
62	1
63	1
64	1
65	1
66	1
67	564
68	18
69	6
70	4
71	3
72	2
73	2
74	1
75	1
76	1
77	1
78	1
79	1028
80	24
81	8
82	4
83	3
84	2
85	2
86	2
87	1
88	1
89	1
90	1
91	1

[1, 2, 1, 4, 1, 1, 6, 2, 1, 1, 11, 3, 2, 1, 1, 18, 4, 2, 1, 1, 1, 31, 5, 3, 2, 1, 1, 1, 54, 6, 3, 2, 2, 1, 1, 1, 97, 8, 4, 2, 2, 1, 1, 1, 1, 172, 11, 4, 3, 2, 2, 1, 1, 1, 1, 309, 14, 5, 3, 2, 2, 1, 1, 1, 1, 1, 564, 18, 6, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1028, 24, 8, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1]

cp's OEIS Frontend

A247073 Triangle read by rows: T(n,k) is the number of k-th prime powers up to 2^n, for k = 1 to n.

Table of values

List of values