A124039 - cp's OEIS frontend

A124039 Triangle read by rows: T(n, k) = (-1)^floor((n+k+2)/2)(2 - (-1)^(n+k))A046854(n-1, k-1) with T(1, 1) = 3.

n	a(n)
1	3
2	3
3	-1
4	-1
5	-3
6	1
7	-3
8	2
9	3
10	-1
11	1
12	6
13	-3
14	-3
15	1
16	3
17	-3
18	-9
19	4
20	3
21	-1
22	-1
23	-9
24	6
25	12
26	-5
27	-3
28	1
29	-3
30	4
31	18
32	-10
33	-15
34	6
35	3
36	-1
37	1
38	12
39	-10
40	-30
41	15
42	18
43	-7
44	-3
45	1
46	3
47	-5
48	-30
49	20
50	45
51	-21
52	-21
53	8
54	3
55	-1
56	-1
57	-15
58	15
59	60
60	-35
61	-63
62	28
63	24
64	-9
65	-3
66	1

[3, 3, -1, -1, -3, 1, -3, 2, 3, -1, 1, 6, -3, -3, 1, 3, -3, -9, 4, 3, -1, -1, -9, 6, 12, -5, -3, 1, -3, 4, 18, -10, -15, 6, 3, -1, 1, 12, -10, -30, 15, 18, -7, -3, 1, 3, -5, -30, 20, 45, -21, -21, 8, 3, -1, -1, -15, 15, 60, -35, -63, 28, 24, -9, -3, 1]

cp's OEIS Frontend

A124039 Triangle read by rows: T(n, k) = (-1)^floor((n+k+2)/2)(2 - (-1)^(n+k))A046854(n-1, k-1) with T(1, 1) = 3.

Table of values

List of values

n	a(n)
1	3
2	3
3	-1
4	-1
5	-3
6	1
7	-3
8	2
9	3
10	-1
11	1
12	6
13	-3
14	-3
15	1
16	3
17	-3
18	-9
19	4
20	3
21	-1
22	-1
23	-9
24	6
25	12
26	-5
27	-3
28	1
29	-3
30	4
31	18
32	-10
33	-15
34	6
35	3
36	-1
37	1
38	12
39	-10
40	-30
41	15
42	18
43	-7
44	-3
45	1
46	3
47	-5
48	-30
49	20
50	45
51	-21
52	-21
53	8
54	3
55	-1
56	-1
57	-15
58	15
59	60
60	-35
61	-63
62	28
63	24
64	-9
65	-3
66	1

n	a(n)
1	3
2	3
3	-1
4	-1
5	-3
6	1
7	-3
8	2
9	3
10	-1
11	1
12	6
13	-3
14	-3
15	1
16	3
17	-3
18	-9
19	4
20	3
21	-1
22	-1
23	-9
24	6
25	12
26	-5
27	-3
28	1
29	-3
30	4
31	18
32	-10
33	-15
34	6
35	3
36	-1
37	1
38	12
39	-10
40	-30
41	15
42	18
43	-7
44	-3
45	1
46	3
47	-5
48	-30
49	20
50	45
51	-21
52	-21
53	8
54	3
55	-1
56	-1
57	-15
58	15
59	60
60	-35
61	-63
62	28
63	24
64	-9
65	-3
66	1

cp's OEIS Frontend

A124039 Triangle read by rows: T(n, k) = (-1)^floor((n+k+2)/2)*(2 - (-1)^(n+k))*A046854(n-1, k-1) with T(1, 1) = 3.

Table of values

List of values

A124039 Triangle read by rows: T(n, k) = (-1)^floor((n+k+2)/2)(2 - (-1)^(n+k))A046854(n-1, k-1) with T(1, 1) = 3.

n	a(n)
1	3
2	3
3	-1
4	-1
5	-3
6	1
7	-3
8	2
9	3
10	-1
11	1
12	6
13	-3
14	-3
15	1
16	3
17	-3
18	-9
19	4
20	3
21	-1
22	-1
23	-9
24	6
25	12
26	-5
27	-3
28	1
29	-3
30	4
31	18
32	-10
33	-15
34	6
35	3
36	-1
37	1
38	12
39	-10
40	-30
41	15
42	18
43	-7
44	-3
45	1
46	3
47	-5
48	-30
49	20
50	45
51	-21
52	-21
53	8
54	3
55	-1
56	-1
57	-15
58	15
59	60
60	-35
61	-63
62	28
63	24
64	-9
65	-3
66	1