A187307 - cp's OEIS frontend

A187307 Hankel transform of an alternating sum of Motzkin numbers.

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

[1, 2, 2, -1, -5, -5, 1, 8, 8, -1, -11, -11, 1, 14, 14, -1, -17, -17, 1, 20, 20, -1, -23, -23, 1, 26, 26, -1, -29, -29, 1, 32, 32, -1, -35, -35, 1, 38, 38, -1, -41, -41, 1, 44, 44, -1, -47, -47, 1, 50, 50, -1, -53, -53, 1, 56, 56, -1, -59, -59, 1]

cp's OEIS Frontend

A187307 Hankel transform of an alternating sum of Motzkin numbers.

Table of values

List of values

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

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

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