A124448 - cp's OEIS frontend

A124448 Riordan array (sqrt(1+4x^2)-2x, (1+2x-sqrt(1+4x^2))/2).

n	a(n)
0	1
1	-2
2	1
3	2
4	-3
5	1
6	0
7	4
8	-4
9	1
10	-2
11	-1
12	7
13	-5
14	1
15	0
16	-4
17	-4
18	11
19	-6
20	1
21	4
22	2
23	-6
24	-10
25	16
26	-7
27	1
28	0
29	8
30	8
31	-6
32	-20
33	22
34	-8
35	1
36	-10
37	-5
38	11
39	19
40	-1
41	-35
42	29
43	-9
44	1
45	0
46	-20
47	-20
48	7
49	34
50	13
51	-56
52	37
53	-10
54	1
55	28
56	14
57	-26
58	-46
59	-12
60	49
61	41
62	-84

[1, -2, 1, 2, -3, 1, 0, 4, -4, 1, -2, -1, 7, -5, 1, 0, -4, -4, 11, -6, 1, 4, 2, -6, -10, 16, -7, 1, 0, 8, 8, -6, -20, 22, -8, 1, -10, -5, 11, 19, -1, -35, 29, -9, 1, 0, -20, -20, 7, 34, 13, -56, 37, -10, 1, 28, 14, -26, -46, -12, 49, 41, -84]

cp's OEIS Frontend

A124448 Riordan array (sqrt(1+4x^2)-2x, (1+2x-sqrt(1+4x^2))/2).

Table of values

List of values

n	a(n)
0	1
1	-2
2	1
3	2
4	-3
5	1
6	0
7	4
8	-4
9	1
10	-2
11	-1
12	7
13	-5
14	1
15	0
16	-4
17	-4
18	11
19	-6
20	1
21	4
22	2
23	-6
24	-10
25	16
26	-7
27	1
28	0
29	8
30	8
31	-6
32	-20
33	22
34	-8
35	1
36	-10
37	-5
38	11
39	19
40	-1
41	-35
42	29
43	-9
44	1
45	0
46	-20
47	-20
48	7
49	34
50	13
51	-56
52	37
53	-10
54	1
55	28
56	14
57	-26
58	-46
59	-12
60	49
61	41
62	-84

n	a(n)
0	1
1	-2
2	1
3	2
4	-3
5	1
6	0
7	4
8	-4
9	1
10	-2
11	-1
12	7
13	-5
14	1
15	0
16	-4
17	-4
18	11
19	-6
20	1
21	4
22	2
23	-6
24	-10
25	16
26	-7
27	1
28	0
29	8
30	8
31	-6
32	-20
33	22
34	-8
35	1
36	-10
37	-5
38	11
39	19
40	-1
41	-35
42	29
43	-9
44	1
45	0
46	-20
47	-20
48	7
49	34
50	13
51	-56
52	37
53	-10
54	1
55	28
56	14
57	-26
58	-46
59	-12
60	49
61	41
62	-84

n	a(n)
0	1
1	-2
2	1
3	2
4	-3
5	1
6	0
7	4
8	-4
9	1
10	-2
11	-1
12	7
13	-5
14	1
15	0
16	-4
17	-4
18	11
19	-6
20	1
21	4
22	2
23	-6
24	-10
25	16
26	-7
27	1
28	0
29	8
30	8
31	-6
32	-20
33	22
34	-8
35	1
36	-10
37	-5
38	11
39	19
40	-1
41	-35
42	29
43	-9
44	1
45	0
46	-20
47	-20
48	7
49	34
50	13
51	-56
52	37
53	-10
54	1
55	28
56	14
57	-26
58	-46
59	-12
60	49
61	41
62	-84