A183034 - cp's OEIS frontend

A183034 G.f.: A(x) = exp( Sum_{n>=1} -(-2)^A001511(n)*x^n/n ) where A001511(n) equals the 2-adic valuation of 2n.

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

[1, 2, 0, -2, 2, 6, 0, -6, 0, 6, 0, -6, -2, 2, 0, -2, 2, 6, 0, -6, 6, 18, 0, -18, 0, 18, 0, -18, -6, 6, 0, -6, 0, 6, 0, -6, 6, 18, 0, -18, 0, 18, 0, -18, -6, 6, 0, -6, -2, 2, 0, -2, 2, 6, 0, -6, 0, 6, 0, -6, -2, 2, 0, -2, 2, 6, 0, -6, 6, 18, 0, -18, 0, 18, 0, -18, -6, 6, 0, -6, 6, 18, 0, -18, 18, 54, 0]

cp's OEIS Frontend

A183034 G.f.: A(x) = exp( Sum_{n>=1} -(-2)^A001511(n)*x^n/n ) where A001511(n) equals the 2-adic valuation of 2n.

Table of values

List of values

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

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

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