A300441 - cp's OEIS frontend

A300441 Number of the integers 4^k(4u(m)^2+1) (k,m = 0,1,2,...) such that n^2 - 4^k(4u(m)^2+1) can be written as the sum of two squares, where u(0) = 0, u(1) = 1, and u(j+1) = 4*u(j) - u(j-1) for j = 1,2,3,....

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

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

cp's OEIS Frontend

A300441 Number of the integers 4^k(4u(m)^2+1) (k,m = 0,1,2,...) such that n^2 - 4^k(4u(m)^2+1) can be written as the sum of two squares, where u(0) = 0, u(1) = 1, and u(j+1) = 4*u(j) - u(j-1) for j = 1,2,3,....

Table of values

List of values

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

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

cp's OEIS Frontend

A300441 Number of the integers 4^k*(4*u(m)^2+1) (k,m = 0,1,2,...) such that n^2 - 4^k*(4*u(m)^2+1) can be written as the sum of two squares, where u(0) = 0, u(1) = 1, and u(j+1) = 4*u(j) - u(j-1) for j = 1,2,3,....

Table of values

List of values

A300441 Number of the integers 4^k(4u(m)^2+1) (k,m = 0,1,2,...) such that n^2 - 4^k(4u(m)^2+1) can be written as the sum of two squares, where u(0) = 0, u(1) = 1, and u(j+1) = 4*u(j) - u(j-1) for j = 1,2,3,....

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