A094114 - cp's OEIS frontend

A094114 a(n) = -Sum_{i=1..n-1} (-1)^i*2^valuation(i,3).

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

[0, 1, 0, 2, 1, 2, 0, 1, 0, 4, 3, 4, 2, 3, 2, 4, 3, 4, 0, 1, 0, 2, 1, 2, 0, 1, 0, 8, 7, 8, 6, 7, 6, 8, 7, 8, 4, 5, 4, 6, 5, 6, 4, 5, 4, 8, 7, 8, 6, 7, 6, 8, 7, 8, 0, 1, 0, 2, 1, 2, 0, 1, 0, 4, 3, 4, 2, 3, 2, 4, 3, 4, 0, 1, 0, 2, 1, 2, 0, 1, 0, 16, 15, 16, 14, 15, 14, 16, 15, 16, 12, 13, 12, 14, 13, 14, 12]

cp's OEIS Frontend

A094114 a(n) = -Sum_{i=1..n-1} (-1)^i*2^valuation(i,3).

Table of values

List of values

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

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

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