A332413 - cp's OEIS frontend

A332413 a(n) is the imaginary part of f(n) = Sum_{d_k > 0} 3^k * i^(d_k-1) where Sum_{k >= 0} 5^k * d_k is the base 5 representation of n and i denotes the imaginary unit. Sequence A332412 gives real parts.

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

[0, 0, 1, 0, -1, 0, 0, 1, 0, -1, 3, 3, 4, 3, 2, 0, 0, 1, 0, -1, -3, -3, -2, -3, -4, 0, 0, 1, 0, -1, 0, 0, 1, 0, -1, 3, 3, 4, 3, 2, 0, 0, 1, 0, -1, -3, -3, -2, -3, -4, 9, 9, 10, 9, 8, 9, 9, 10, 9, 8, 12, 12, 13, 12, 11, 9, 9, 10, 9, 8, 6, 6, 7, 6, 5, 0, 0, 1, 0]

cp's OEIS Frontend

A332413 a(n) is the imaginary part of f(n) = Sum_{d_k > 0} 3^k * i^(d_k-1) where Sum_{k >= 0} 5^k * d_k is the base 5 representation of n and i denotes the imaginary unit. Sequence A332412 gives real parts.

Table of values

List of values

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

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

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