A204181 - cp's OEIS frontend

A204181 Symmetric matrix based on f(i,j) defined by f(i,1)=f(1,j)=1; f(i,i)= 2i-1; f(i,j)=0 otherwise; by antidiagonals.

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

[1, 1, 1, 1, 3, 1, 1, 0, 0, 1, 1, 0, 5, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 7, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 9, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 11, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 13, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0]

cp's OEIS Frontend

A204181 Symmetric matrix based on f(i,j) defined by f(i,1)=f(1,j)=1; f(i,i)= 2i-1; f(i,j)=0 otherwise; by antidiagonals.

Table of values

List of values

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

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

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