A067840 - cp's OEIS frontend

A067840 Factorial expansion of e^2 : exp(2) = Sum_{n >= 0} a(n)/n!.

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

[7, 0, 0, 2, 1, 1, 4, 0, 6, 6, 6, 8, 5, 11, 5, 10, 10, 15, 16, 8, 19, 18, 15, 0, 16, 1, 2, 26, 17, 27, 23, 17, 18, 11, 24, 34, 25, 16, 27, 5, 33, 20, 11, 39, 35, 25, 39, 7, 5, 21, 27, 30, 33, 21, 34, 9, 10, 26, 32, 15, 35, 23, 6, 3, 21, 43, 50, 40, 41, 33, 1, 62, 58, 59, 12, 23, 62, 42]

cp's OEIS Frontend

A067840 Factorial expansion of e^2 : exp(2) = Sum_{n >= 0} a(n)/n!.

Table of values

List of values

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

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

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