A205565 - cp's OEIS frontend

A205565 Number of ways of writing n = u + v with u <= v, and u,v having in ternary representation no 3.

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

[1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 2, 4, 2, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 2, 4, 2, 1, 2, 1, 2, 4, 2, 4, 8, 4, 2, 4, 2, 1, 2, 1, 2, 4, 2, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 2, 4, 2, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 2, 4]

cp's OEIS Frontend

A205565 Number of ways of writing n = u + v with u <= v, and u,v having in ternary representation no 3.

Table of values

List of values

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

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

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