A262887 - cp's OEIS frontend

A262887 Number of ordered ways to write n as x^3 + y^2 + pi(z^2) (x >= 0, y >= 0 and z > 0) with z-1 or z+1 prime, where pi(m) denotes the number of primes not exceeding m.

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

[2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4, 5, 3, 3, 3, 4, 2, 3, 5, 4, 3, 2, 4, 1, 2, 5, 6, 6, 3, 5, 3, 2, 4, 5, 8, 4, 5, 4, 4, 2, 2, 7, 5, 5, 4, 4, 3, 3, 5, 4, 5, 4, 4, 7, 5, 5, 1, 4, 3, 3, 8, 4, 5, 3, 4, 4, 7, 8, 5, 9, 7, 3, 1, 5, 8, 5, 4, 6, 5, 6, 4, 9, 8, 4, 2, 5, 6, 4, 4, 7, 8, 3, 9, 5, 5, 2, 6, 5, 4, 6]

cp's OEIS Frontend

A262887 Number of ordered ways to write n as x^3 + y^2 + pi(z^2) (x >= 0, y >= 0 and z > 0) with z-1 or z+1 prime, where pi(m) denotes the number of primes not exceeding m.

Table of values

List of values

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

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

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