A282947 - cp's OEIS frontend

A282947 Number of ways of writing n as a sum of a perfect power and a squarefree semiprime.

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	0
7	1
8	0
9	0
10	1
11	1
12	0
13	0
14	2
15	2
16	1
17	0
18	2
19	2
20	0
21	0
22	3
23	3
24	1
25	1
26	2
27	1
28	0
29	1
30	4
31	3
32	0
33	1
34	2
35	3
36	1
37	3
38	3
39	3
40	2
41	2
42	7
43	3
44	1
45	0
46	4
47	5
48	2
49	2
50	3
51	3
52	1
53	2
54	3
55	4
56	1
57	1
58	4
59	5
60	3
61	2
62	4
63	4
64	3
65	3
66	6
67	3
68	0
69	2
70	6
71	6
72	0
73	4
74	4
75	3
76	1
77	1
78	7
79	1
80	1
81	2
82	5
83	5
84	2
85	4
86	4
87	6
88	2
89	3
90	6
91	4
92	2
93	3
94	6
95	6
96	4
97	3
98	4
99	4
100	2
101	5
102	6
103	5
104	3
105	1
106	3
107	5
108	0
109	3
110	6
111	3
112	3
113	2
114	6
115	5
116	3
117	1
118	5
119	7
120	5

[0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 2, 2, 1, 0, 2, 2, 0, 0, 3, 3, 1, 1, 2, 1, 0, 1, 4, 3, 0, 1, 2, 3, 1, 3, 3, 3, 2, 2, 7, 3, 1, 0, 4, 5, 2, 2, 3, 3, 1, 2, 3, 4, 1, 1, 4, 5, 3, 2, 4, 4, 3, 3, 6, 3, 0, 2, 6, 6, 0, 4, 4, 3, 1, 1, 7, 1, 1, 2, 5, 5, 2, 4, 4, 6, 2, 3, 6, 4, 2, 3, 6, 6, 4, 3, 4, 4, 2, 5, 6, 5, 3, 1, 3, 5, 0, 3, 6, 3, 3, 2, 6, 5, 3, 1, 5, 7, 5]

cp's OEIS Frontend

A282947 Number of ways of writing n as a sum of a perfect power and a squarefree semiprime.

Table of values

List of values

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	0
7	1
8	0
9	0
10	1
11	1
12	0
13	0
14	2
15	2
16	1
17	0
18	2
19	2
20	0
21	0
22	3
23	3
24	1
25	1
26	2
27	1
28	0
29	1
30	4
31	3
32	0
33	1
34	2
35	3
36	1
37	3
38	3
39	3
40	2
41	2
42	7
43	3
44	1
45	0
46	4
47	5
48	2
49	2
50	3
51	3
52	1
53	2
54	3
55	4
56	1
57	1
58	4
59	5
60	3
61	2
62	4
63	4
64	3
65	3
66	6
67	3
68	0
69	2
70	6
71	6
72	0
73	4
74	4
75	3
76	1
77	1
78	7
79	1
80	1
81	2
82	5
83	5
84	2
85	4
86	4
87	6
88	2
89	3
90	6
91	4
92	2
93	3
94	6
95	6
96	4
97	3
98	4
99	4
100	2
101	5
102	6
103	5
104	3
105	1
106	3
107	5
108	0
109	3
110	6
111	3
112	3
113	2
114	6
115	5
116	3
117	1
118	5
119	7
120	5

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	0
7	1
8	0
9	0
10	1
11	1
12	0
13	0
14	2
15	2
16	1
17	0
18	2
19	2
20	0
21	0
22	3
23	3
24	1
25	1
26	2
27	1
28	0
29	1
30	4
31	3
32	0
33	1
34	2
35	3
36	1
37	3
38	3
39	3
40	2
41	2
42	7
43	3
44	1
45	0
46	4
47	5
48	2
49	2
50	3
51	3
52	1
53	2
54	3
55	4
56	1
57	1
58	4
59	5
60	3
61	2
62	4
63	4
64	3
65	3
66	6
67	3
68	0
69	2
70	6
71	6
72	0
73	4
74	4
75	3
76	1
77	1
78	7
79	1
80	1
81	2
82	5
83	5
84	2
85	4
86	4
87	6
88	2
89	3
90	6
91	4
92	2
93	3
94	6
95	6
96	4
97	3
98	4
99	4
100	2
101	5
102	6
103	5
104	3
105	1
106	3
107	5
108	0
109	3
110	6
111	3
112	3
113	2
114	6
115	5
116	3
117	1
118	5
119	7
120	5

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	0
7	1
8	0
9	0
10	1
11	1
12	0
13	0
14	2
15	2
16	1
17	0
18	2
19	2
20	0
21	0
22	3
23	3
24	1
25	1
26	2
27	1
28	0
29	1
30	4
31	3
32	0
33	1
34	2
35	3
36	1
37	3
38	3
39	3
40	2
41	2
42	7
43	3
44	1
45	0
46	4
47	5
48	2
49	2
50	3
51	3
52	1
53	2
54	3
55	4
56	1
57	1
58	4
59	5
60	3
61	2
62	4
63	4
64	3
65	3
66	6
67	3
68	0
69	2
70	6
71	6
72	0
73	4
74	4
75	3
76	1
77	1
78	7
79	1
80	1
81	2
82	5
83	5
84	2
85	4
86	4
87	6
88	2
89	3
90	6
91	4
92	2
93	3
94	6
95	6
96	4
97	3
98	4
99	4
100	2
101	5
102	6
103	5
104	3
105	1
106	3
107	5
108	0
109	3
110	6
111	3
112	3
113	2
114	6
115	5
116	3
117	1
118	5
119	7
120	5