A143626 - cp's OEIS frontend

A143626 Decimal expansion of the constant E_3(1) := Sum_{k >= 0} (-1)^floor(k/3)*k/k! = 1/1! + 2/2! - 3/3! - 4/4! - 5/5! + + + - - - ... .

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

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

cp's OEIS Frontend

A143626 Decimal expansion of the constant E_3(1) := Sum_{k >= 0} (-1)^floor(k/3)*k/k! = 1/1! + 2/2! - 3/3! - 4/4! - 5/5! + + + - - - ... .

Table of values

List of values

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

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

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