A250131 - cp's OEIS frontend

A250131 a(n) is the odd part of the digital sum of 3^n divided by the maximal possible power of 3.

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

[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5, 1, 1, 1, 5, 1, 5, 1, 5, 1, 1, 7, 7, 1, 1, 1, 7, 1, 7, 1, 11, 1, 1, 5, 5, 1, 5, 11, 5, 1, 5, 11, 1, 7, 13, 1, 1, 13, 13, 5, 1, 5, 5, 1, 7, 13, 11, 5, 17, 17, 1, 5, 13, 1, 17, 17, 1, 5, 1, 17, 19, 5, 17, 1]

cp's OEIS Frontend

A250131 a(n) is the odd part of the digital sum of 3^n divided by the maximal possible power of 3.

Table of values

List of values

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

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

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