A382518 - cp's OEIS frontend

A382518 Let N = A001481(n), the n-th number that is the sum of two nonnegative squares. a(n) is the index of the first lattice-edge sequence that will accept N so that no sequence contains the edges of a triangle, otherwise if no such sequence exists, a(n) = 0.

n	a(n)
1	1
2	1
3	0
4	1
5	2
6	0
7	0
8	1
9	1
10	2
11	0
12	0
13	3
14	0
15	0
16	1
17	3
18	1
19	0
20	2
21	0
22	0
23	0
24	0
25	3
26	4
27	0
28	0
29	3
30	0
31	0
32	1
33	0
34	4
35	0
36	1
37	3
38	0
39	0
40	2
41	3
42	0
43	0
44	0
45	2
46	0
47	0
48	0
49	1
50	4

[1, 1, 0, 1, 2, 0, 0, 1, 1, 2, 0, 0, 3, 0, 0, 1, 3, 1, 0, 2, 0, 0, 0, 0, 3, 4, 0, 0, 3, 0, 0, 1, 0, 4, 0, 1, 3, 0, 0, 2, 3, 0, 0, 0, 2, 0, 0, 0, 1, 4]

cp's OEIS Frontend

A382518 Let N = A001481(n), the n-th number that is the sum of two nonnegative squares. a(n) is the index of the first lattice-edge sequence that will accept N so that no sequence contains the edges of a triangle, otherwise if no such sequence exists, a(n) = 0.

Table of values

List of values

n	a(n)
1	1
2	1
3	0
4	1
5	2
6	0
7	0
8	1
9	1
10	2
11	0
12	0
13	3
14	0
15	0
16	1
17	3
18	1
19	0
20	2
21	0
22	0
23	0
24	0
25	3
26	4
27	0
28	0
29	3
30	0
31	0
32	1
33	0
34	4
35	0
36	1
37	3
38	0
39	0
40	2
41	3
42	0
43	0
44	0
45	2
46	0
47	0
48	0
49	1
50	4

n	a(n)
1	1
2	1
3	0
4	1
5	2
6	0
7	0
8	1
9	1
10	2
11	0
12	0
13	3
14	0
15	0
16	1
17	3
18	1
19	0
20	2
21	0
22	0
23	0
24	0
25	3
26	4
27	0
28	0
29	3
30	0
31	0
32	1
33	0
34	4
35	0
36	1
37	3
38	0
39	0
40	2
41	3
42	0
43	0
44	0
45	2
46	0
47	0
48	0
49	1
50	4

n	a(n)
1	1
2	1
3	0
4	1
5	2
6	0
7	0
8	1
9	1
10	2
11	0
12	0
13	3
14	0
15	0
16	1
17	3
18	1
19	0
20	2
21	0
22	0
23	0
24	0
25	3
26	4
27	0
28	0
29	3
30	0
31	0
32	1
33	0
34	4
35	0
36	1
37	3
38	0
39	0
40	2
41	3
42	0
43	0
44	0
45	2
46	0
47	0
48	0
49	1
50	4