A264025 - cp's OEIS frontend

A264025 Number of ways to write n as x^2 + y(2y+1) + z*(z+1)/2 where x, y and z are nonnegative integers with z or z+1 prime.

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

[1, 1, 1, 2, 2, 2, 3, 1, 1, 5, 2, 2, 4, 3, 4, 2, 4, 2, 4, 4, 2, 7, 1, 4, 6, 4, 3, 5, 6, 1, 8, 5, 2, 3, 4, 4, 5, 5, 3, 9, 3, 5, 5, 1, 3, 6, 7, 1, 5, 4, 4, 5, 4, 2, 6, 6, 3, 8, 4, 5, 4, 7, 2, 5, 8, 4, 11, 2, 4, 7, 4, 2, 7, 9, 3, 5, 7, 4, 4, 10, 5, 8, 4, 4, 11, 4, 7, 8, 4, 5, 9, 11, 3, 8, 9, 2, 7, 2, 4, 8]

cp's OEIS Frontend

A264025 Number of ways to write n as x^2 + y(2y+1) + z*(z+1)/2 where x, y and z are nonnegative integers with z or z+1 prime.

Table of values

List of values

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

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

cp's OEIS Frontend

A264025 Number of ways to write n as x^2 + y*(2*y+1) + z*(z+1)/2 where x, y and z are nonnegative integers with z or z+1 prime.

Table of values

List of values

A264025 Number of ways to write n as x^2 + y(2y+1) + z*(z+1)/2 where x, y and z are nonnegative integers with z or z+1 prime.

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