A262976 - cp's OEIS frontend

A262976 Number of ordered ways to write n as 2^x + y^2 + pi(z^2) with x >= 0, y >= 0 and z > 0, where pi(m) denotes the number of primes not exceeding m.

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

[1, 2, 2, 3, 4, 4, 4, 6, 4, 6, 6, 7, 6, 7, 5, 6, 10, 5, 9, 10, 7, 7, 9, 9, 4, 12, 10, 9, 8, 7, 10, 9, 10, 7, 15, 10, 6, 13, 10, 9, 10, 16, 10, 10, 9, 8, 15, 9, 8, 15, 12, 12, 7, 12, 11, 14, 12, 8, 16, 6, 10, 11, 14, 8, 11, 17, 10, 16, 9, 13, 16, 15, 8, 18, 13, 10, 14, 10, 12, 16, 12, 13, 18, 11, 9, 17, 17, 9, 15, 16, 15, 9, 12, 12, 17, 12, 9, 21, 10, 11]

cp's OEIS Frontend

A262976 Number of ordered ways to write n as 2^x + y^2 + pi(z^2) with x >= 0, y >= 0 and z > 0, where pi(m) denotes the number of primes not exceeding m.

Table of values

List of values

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

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

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