A263250 - cp's OEIS frontend

A263250 Even bisection of A263087; number of solutions to x - d(x) = 4(n^2), where d(x) is the number of divisors of x (A000005).

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

[2, 1, 1, 0, 0, 0, 2, 0, 0, 0, 0, 0, 2, 0, 0, 1, 1, 0, 2, 1, 1, 1, 1, 0, 2, 0, 1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 3, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 2, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 2, 0, 0, 0, 0, 0, 3, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 1, 0, 1, 1, 0, 1, 2, 0, 0, 0, 1, 0, 2, 0, 0, 1, 0, 0, 1, 1, 2, 1, 1, 0, 2, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 0, 1, 0, 1, 0, 1]

cp's OEIS Frontend

A263250 Even bisection of A263087; number of solutions to x - d(x) = 4(n^2), where d(x) is the number of divisors of x (A000005).

Table of values

List of values

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

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

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