A332412 - cp's OEIS frontend

A332412 a(n) is the real 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 A332413 gives imaginary parts.

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

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

cp's OEIS Frontend

A332412 a(n) is the real 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 A332413 gives imaginary parts.

Table of values

List of values

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

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

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