A334380 - cp's OEIS frontend

A334380 Decimal expansion of Sum_{k>=0} (-1)^k/((2*k)!!)^2.

n	a(n)
0	7
1	6
2	5
3	1
4	9
5	7
6	6
7	8
8	6
9	5
10	5
11	7
12	9
13	6
14	6
15	5
16	5
17	1
18	4
19	4
20	9
21	7
22	1
23	7
24	5
25	2
26	6
27	1
28	0
29	2
30	6
31	6
32	3
33	2
34	2
35	0
36	9
37	0
38	9
39	2
40	7
41	4
42	2
43	8
44	9
45	7
46	5
47	5
48	3
49	2
50	5
51	2
52	4
53	1
54	8
55	6
56	1
57	5
58	4
59	7
60	5
61	4
62	9
63	1
64	1
65	9
66	2
67	7
68	8
69	9
70	1
71	2
72	2
73	1
74	5
75	2
76	7
77	2
78	4
79	4
80	0
81	1
82	6
83	7
84	1
85	8
86	0
87	6
88	0
89	0
90	0
91	9
92	8
93	9
94	1
95	5
96	6
97	3
98	3
99	9
100	7
101	4
102	9
103	2
104	9
105	2
106	5
107	9
108	8
109	2

[7, 6, 5, 1, 9, 7, 6, 8, 6, 5, 5, 7, 9, 6, 6, 5, 5, 1, 4, 4, 9, 7, 1, 7, 5, 2, 6, 1, 0, 2, 6, 6, 3, 2, 2, 0, 9, 0, 9, 2, 7, 4, 2, 8, 9, 7, 5, 5, 3, 2, 5, 2, 4, 1, 8, 6, 1, 5, 4, 7, 5, 4, 9, 1, 1, 9, 2, 7, 8, 9, 1, 2, 2, 1, 5, 2, 7, 2, 4, 4, 0, 1, 6, 7, 1, 8, 0, 6, 0, 0, 0, 9, 8, 9, 1, 5, 6, 3, 3, 9, 7, 4, 9, 2, 9, 2, 5, 9, 8, 2]

cp's OEIS Frontend

A334380 Decimal expansion of Sum_{k>=0} (-1)^k/((2*k)!!)^2.

Table of values

List of values

n	a(n)
0	7
1	6
2	5
3	1
4	9
5	7
6	6
7	8
8	6
9	5
10	5
11	7
12	9
13	6
14	6
15	5
16	5
17	1
18	4
19	4
20	9
21	7
22	1
23	7
24	5
25	2
26	6
27	1
28	0
29	2
30	6
31	6
32	3
33	2
34	2
35	0
36	9
37	0
38	9
39	2
40	7
41	4
42	2
43	8
44	9
45	7
46	5
47	5
48	3
49	2
50	5
51	2
52	4
53	1
54	8
55	6
56	1
57	5
58	4
59	7
60	5
61	4
62	9
63	1
64	1
65	9
66	2
67	7
68	8
69	9
70	1
71	2
72	2
73	1
74	5
75	2
76	7
77	2
78	4
79	4
80	0
81	1
82	6
83	7
84	1
85	8
86	0
87	6
88	0
89	0
90	0
91	9
92	8
93	9
94	1
95	5
96	6
97	3
98	3
99	9
100	7
101	4
102	9
103	2
104	9
105	2
106	5
107	9
108	8
109	2

n	a(n)
0	7
1	6
2	5
3	1
4	9
5	7
6	6
7	8
8	6
9	5
10	5
11	7
12	9
13	6
14	6
15	5
16	5
17	1
18	4
19	4
20	9
21	7
22	1
23	7
24	5
25	2
26	6
27	1
28	0
29	2
30	6
31	6
32	3
33	2
34	2
35	0
36	9
37	0
38	9
39	2
40	7
41	4
42	2
43	8
44	9
45	7
46	5
47	5
48	3
49	2
50	5
51	2
52	4
53	1
54	8
55	6
56	1
57	5
58	4
59	7
60	5
61	4
62	9
63	1
64	1
65	9
66	2
67	7
68	8
69	9
70	1
71	2
72	2
73	1
74	5
75	2
76	7
77	2
78	4
79	4
80	0
81	1
82	6
83	7
84	1
85	8
86	0
87	6
88	0
89	0
90	0
91	9
92	8
93	9
94	1
95	5
96	6
97	3
98	3
99	9
100	7
101	4
102	9
103	2
104	9
105	2
106	5
107	9
108	8
109	2

n	a(n)
0	7
1	6
2	5
3	1
4	9
5	7
6	6
7	8
8	6
9	5
10	5
11	7
12	9
13	6
14	6
15	5
16	5
17	1
18	4
19	4
20	9
21	7
22	1
23	7
24	5
25	2
26	6
27	1
28	0
29	2
30	6
31	6
32	3
33	2
34	2
35	0
36	9
37	0
38	9
39	2
40	7
41	4
42	2
43	8
44	9
45	7
46	5
47	5
48	3
49	2
50	5
51	2
52	4
53	1
54	8
55	6
56	1
57	5
58	4
59	7
60	5
61	4
62	9
63	1
64	1
65	9
66	2
67	7
68	8
69	9
70	1
71	2
72	2
73	1
74	5
75	2
76	7
77	2
78	4
79	4
80	0
81	1
82	6
83	7
84	1
85	8
86	0
87	6
88	0
89	0
90	0
91	9
92	8
93	9
94	1
95	5
96	6
97	3
98	3
99	9
100	7
101	4
102	9
103	2
104	9
105	2
106	5
107	9
108	8
109	2