A145429 - cp's OEIS frontend

A145429 Decimal expansion of Sum_{n > 0} n*(n!)^2/(2n)!.

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

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

cp's OEIS Frontend

A145429 Decimal expansion of Sum_{n > 0} n*(n!)^2/(2n)!.

Table of values

List of values

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

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

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