A335415 - cp's OEIS frontend

A335415 Decimal expansion of Sum_{k>=0} 1/cosh(Pi*k).

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

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

cp's OEIS Frontend

A335415 Decimal expansion of Sum_{k>=0} 1/cosh(Pi*k).

Table of values

List of values

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

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

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