A368876 - cp's OEIS frontend

A368876 a(n) is the number of ways n can be reached by the following method: we start with 1, then add or multiply alternately, and each operand must be 3 or 4 or 5.

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

[1, 0, 1, 2, 2, 2, 2, 3, 2, 1, 0, 1, 0, 0, 2, 2, 1, 3, 2, 4, 5, 2, 4, 9, 5, 2, 7, 8, 6, 6, 4, 7, 5, 3, 8, 5, 3, 2, 4, 8, 2, 0, 4, 4, 7, 0, 0, 4, 3, 4, 2, 1, 2, 3, 2, 1, 3, 1, 1, 5, 2, 2, 6, 4, 3, 5, 4, 5, 7, 2, 3, 10, 5, 4, 10, 7, 5, 7, 7, 10, 9, 2, 5, 17, 9, 5]

cp's OEIS Frontend

A368876 a(n) is the number of ways n can be reached by the following method: we start with 1, then add or multiply alternately, and each operand must be 3 or 4 or 5.

Table of values

List of values

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

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

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