A359438 - cp's OEIS frontend

A359438 For n >= 0, let S be the sequence of numbers m such that (m^2 - 2n^2 + 1)/2 is a square. Then a(n) is the number k such that S(j) = 6S(j-k) - S(j-2k) for all j for which S(j-2k) is defined.

n	a(n)
0	1
1	1
2	2
3	2
4	2
5	3
6	2
7	2
8	2
9	4
10	2
11	2
12	4
13	2
14	4
15	2
16	4
17	2
18	2
19	4
20	4
21	2
22	2
23	4
24	2
25	2
26	4
27	4
28	2
29	3
30	4
31	4
32	4
33	4
34	2
35	4
36	2
37	8
38	2
39	2
40	4
41	2
42	2
43	2
44	6
45	2
46	2
47	4
48	4
49	2
50	2
51	4
52	2
53	4
54	8
55	4
56	2
57	4
58	6
59	2
60	4
61	4
62	2
63	2
64	2
65	8
66	4
67	4
68	4
69	2
70	4
71	4
72	4
73	2
74	4
75	4
76	2
77	4
78	4
79	4
80	2
81	2
82	8
83	4
84	4
85	2
86	4

[1, 1, 2, 2, 2, 3, 2, 2, 2, 4, 2, 2, 4, 2, 4, 2, 4, 2, 2, 4, 4, 2, 2, 4, 2, 2, 4, 4, 2, 3, 4, 4, 4, 4, 2, 4, 2, 8, 2, 2, 4, 2, 2, 2, 6, 2, 2, 4, 4, 2, 2, 4, 2, 4, 8, 4, 2, 4, 6, 2, 4, 4, 2, 2, 2, 8, 4, 4, 4, 2, 4, 4, 4, 2, 4, 4, 2, 4, 4, 4, 2, 2, 8, 4, 4, 2, 4]

cp's OEIS Frontend

A359438 For n >= 0, let S be the sequence of numbers m such that (m^2 - 2n^2 + 1)/2 is a square. Then a(n) is the number k such that S(j) = 6S(j-k) - S(j-2k) for all j for which S(j-2k) is defined.

Table of values

List of values

n	a(n)
0	1
1	1
2	2
3	2
4	2
5	3
6	2
7	2
8	2
9	4
10	2
11	2
12	4
13	2
14	4
15	2
16	4
17	2
18	2
19	4
20	4
21	2
22	2
23	4
24	2
25	2
26	4
27	4
28	2
29	3
30	4
31	4
32	4
33	4
34	2
35	4
36	2
37	8
38	2
39	2
40	4
41	2
42	2
43	2
44	6
45	2
46	2
47	4
48	4
49	2
50	2
51	4
52	2
53	4
54	8
55	4
56	2
57	4
58	6
59	2
60	4
61	4
62	2
63	2
64	2
65	8
66	4
67	4
68	4
69	2
70	4
71	4
72	4
73	2
74	4
75	4
76	2
77	4
78	4
79	4
80	2
81	2
82	8
83	4
84	4
85	2
86	4

n	a(n)
0	1
1	1
2	2
3	2
4	2
5	3
6	2
7	2
8	2
9	4
10	2
11	2
12	4
13	2
14	4
15	2
16	4
17	2
18	2
19	4
20	4
21	2
22	2
23	4
24	2
25	2
26	4
27	4
28	2
29	3
30	4
31	4
32	4
33	4
34	2
35	4
36	2
37	8
38	2
39	2
40	4
41	2
42	2
43	2
44	6
45	2
46	2
47	4
48	4
49	2
50	2
51	4
52	2
53	4
54	8
55	4
56	2
57	4
58	6
59	2
60	4
61	4
62	2
63	2
64	2
65	8
66	4
67	4
68	4
69	2
70	4
71	4
72	4
73	2
74	4
75	4
76	2
77	4
78	4
79	4
80	2
81	2
82	8
83	4
84	4
85	2
86	4

cp's OEIS Frontend

A359438 For n >= 0, let S be the sequence of numbers m such that (m^2 - 2*n^2 + 1)/2 is a square. Then a(n) is the number k such that S(j) = 6*S(j-k) - S(j-2k) for all j for which S(j-2k) is defined.

Table of values

List of values

A359438 For n >= 0, let S be the sequence of numbers m such that (m^2 - 2n^2 + 1)/2 is a square. Then a(n) is the number k such that S(j) = 6S(j-k) - S(j-2k) for all j for which S(j-2k) is defined.

n	a(n)
0	1
1	1
2	2
3	2
4	2
5	3
6	2
7	2
8	2
9	4
10	2
11	2
12	4
13	2
14	4
15	2
16	4
17	2
18	2
19	4
20	4
21	2
22	2
23	4
24	2
25	2
26	4
27	4
28	2
29	3
30	4
31	4
32	4
33	4
34	2
35	4
36	2
37	8
38	2
39	2
40	4
41	2
42	2
43	2
44	6
45	2
46	2
47	4
48	4
49	2
50	2
51	4
52	2
53	4
54	8
55	4
56	2
57	4
58	6
59	2
60	4
61	4
62	2
63	2
64	2
65	8
66	4
67	4
68	4
69	2
70	4
71	4
72	4
73	2
74	4
75	4
76	2
77	4
78	4
79	4
80	2
81	2
82	8
83	4
84	4
85	2
86	4