A143627 - cp's OEIS frontend

A143627 Decimal expansion of the constant E_3(2) := sum {k = 0.. inf} (-1)^floor(k/3)*k^2/k! = 1/1! + 2^2/2! - 3^2/3! - 4^2/4! - 5^2/5! + + + - - - ... = 0.68605 60507 ... .

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

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

cp's OEIS Frontend

A143627 Decimal expansion of the constant E_3(2) := sum {k = 0.. inf} (-1)^floor(k/3)*k^2/k! = 1/1! + 2^2/2! - 3^2/3! - 4^2/4! - 5^2/5! + + + - - - ... = 0.68605 60507 ... .

Table of values

List of values

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

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

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