A178304 - cp's OEIS frontend

A178304 Triangle T(n,m) = 1 + f(n+1)*(f(m+1) + f(n-m+1) - 1 - f(n+1)), read by rows, where f(.)=A002487(.).

n	a(n)
0	1
1	1
2	1
3	1
4	-1
5	1
6	1
7	2
8	2
9	1
10	1
11	-5
12	1
13	-5
14	1
15	1
16	3
17	1
18	1
19	3
20	1
21	1
22	-2
23	4
24	-5
25	4
26	-2
27	1
28	1
29	3
30	3
31	3
32	3
33	3
34	3
35	1
36	1
37	-11
38	1
39	-7
40	5
41	-7
42	1
43	-11
44	1
45	1
46	4
47	-2
48	1
49	4
50	4
51	1
52	-2
53	4
54	1
55	1
56	-9
57	1
58	-19
59	1
60	-9
61	1
62	-19
63	1
64	-9
65	1

[1, 1, 1, 1, -1, 1, 1, 2, 2, 1, 1, -5, 1, -5, 1, 1, 3, 1, 1, 3, 1, 1, -2, 4, -5, 4, -2, 1, 1, 3, 3, 3, 3, 3, 3, 1, 1, -11, 1, -7, 5, -7, 1, -11, 1, 1, 4, -2, 1, 4, 4, 1, -2, 4, 1, 1, -9, 1, -19, 1, -9, 1, -19, 1, -9, 1]

cp's OEIS Frontend

A178304 Triangle T(n,m) = 1 + f(n+1)*(f(m+1) + f(n-m+1) - 1 - f(n+1)), read by rows, where f(.)=A002487(.).

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	1
4	-1
5	1
6	1
7	2
8	2
9	1
10	1
11	-5
12	1
13	-5
14	1
15	1
16	3
17	1
18	1
19	3
20	1
21	1
22	-2
23	4
24	-5
25	4
26	-2
27	1
28	1
29	3
30	3
31	3
32	3
33	3
34	3
35	1
36	1
37	-11
38	1
39	-7
40	5
41	-7
42	1
43	-11
44	1
45	1
46	4
47	-2
48	1
49	4
50	4
51	1
52	-2
53	4
54	1
55	1
56	-9
57	1
58	-19
59	1
60	-9
61	1
62	-19
63	1
64	-9
65	1

n	a(n)
0	1
1	1
2	1
3	1
4	-1
5	1
6	1
7	2
8	2
9	1
10	1
11	-5
12	1
13	-5
14	1
15	1
16	3
17	1
18	1
19	3
20	1
21	1
22	-2
23	4
24	-5
25	4
26	-2
27	1
28	1
29	3
30	3
31	3
32	3
33	3
34	3
35	1
36	1
37	-11
38	1
39	-7
40	5
41	-7
42	1
43	-11
44	1
45	1
46	4
47	-2
48	1
49	4
50	4
51	1
52	-2
53	4
54	1
55	1
56	-9
57	1
58	-19
59	1
60	-9
61	1
62	-19
63	1
64	-9
65	1

n	a(n)
0	1
1	1
2	1
3	1
4	-1
5	1
6	1
7	2
8	2
9	1
10	1
11	-5
12	1
13	-5
14	1
15	1
16	3
17	1
18	1
19	3
20	1
21	1
22	-2
23	4
24	-5
25	4
26	-2
27	1
28	1
29	3
30	3
31	3
32	3
33	3
34	3
35	1
36	1
37	-11
38	1
39	-7
40	5
41	-7
42	1
43	-11
44	1
45	1
46	4
47	-2
48	1
49	4
50	4
51	1
52	-2
53	4
54	1
55	1
56	-9
57	1
58	-19
59	1
60	-9
61	1
62	-19
63	1
64	-9
65	1