A161780 - cp's OEIS frontend

A161780 Square array read by antidiagonals up. Redheffer type matrix. A007427 interleaved with k-1 zeros in the columns.

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

[1, -2, 1, -2, 1, 1, 1, 0, 0, 1, -2, -2, 1, 0, 1, 4, 0, 0, 0, 0, 1, -2, -2, 0, 1, 0, 0, 1, 0, 0, -2, 0, 0, 0, 0, 1, 1, 1, 0, 0, 1, 0, 0, 0, 1, 4, 0, 0, 0, 0, 0, 0, 0, 0, 1, -2, -2, -2, -2, 0, 1, 0, 0, 0, 0, 1, -2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, -2, 4, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 4, 0, 1]

cp's OEIS Frontend

A161780 Square array read by antidiagonals up. Redheffer type matrix. A007427 interleaved with k-1 zeros in the columns.

Table of values

List of values

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

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

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