A306560 - cp's OEIS frontend

A306560 Smallest number of 1's required to build n using +, *, ^ and tetration.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	5
7	6
8	5
9	5
10	6
11	7
12	7
13	8
14	8
15	8
16	5
17	6
18	7
19	8
20	8
21	9
22	9
23	10
24	8
25	7
26	8
27	5
28	6
29	7
30	8
31	9
32	7
33	8
34	8
35	9
36	7
37	8
38	9
39	10
40	10
41	11
42	11
43	10
44	11
45	10
46	11
47	12
48	8
49	8
50	9
51	9
52	10
53	11
54	7
55	8
56	8
57	9
58	9
59	10
60	10
61	11
62	11
63	11
64	7
65	8
66	9
67	10
68	10
69	11
70	11
71	12
72	9
73	10
74	10
75	10
76	11
77	12
78	11
79	12
80	10
81	7
82	8
83	9
84	9
85	10
86	11
87	10

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

cp's OEIS Frontend

A306560 Smallest number of 1's required to build n using +, *, ^ and tetration.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	5
7	6
8	5
9	5
10	6
11	7
12	7
13	8
14	8
15	8
16	5
17	6
18	7
19	8
20	8
21	9
22	9
23	10
24	8
25	7
26	8
27	5
28	6
29	7
30	8
31	9
32	7
33	8
34	8
35	9
36	7
37	8
38	9
39	10
40	10
41	11
42	11
43	10
44	11
45	10
46	11
47	12
48	8
49	8
50	9
51	9
52	10
53	11
54	7
55	8
56	8
57	9
58	9
59	10
60	10
61	11
62	11
63	11
64	7
65	8
66	9
67	10
68	10
69	11
70	11
71	12
72	9
73	10
74	10
75	10
76	11
77	12
78	11
79	12
80	10
81	7
82	8
83	9
84	9
85	10
86	11
87	10

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	5
7	6
8	5
9	5
10	6
11	7
12	7
13	8
14	8
15	8
16	5
17	6
18	7
19	8
20	8
21	9
22	9
23	10
24	8
25	7
26	8
27	5
28	6
29	7
30	8
31	9
32	7
33	8
34	8
35	9
36	7
37	8
38	9
39	10
40	10
41	11
42	11
43	10
44	11
45	10
46	11
47	12
48	8
49	8
50	9
51	9
52	10
53	11
54	7
55	8
56	8
57	9
58	9
59	10
60	10
61	11
62	11
63	11
64	7
65	8
66	9
67	10
68	10
69	11
70	11
71	12
72	9
73	10
74	10
75	10
76	11
77	12
78	11
79	12
80	10
81	7
82	8
83	9
84	9
85	10
86	11
87	10

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	5
7	6
8	5
9	5
10	6
11	7
12	7
13	8
14	8
15	8
16	5
17	6
18	7
19	8
20	8
21	9
22	9
23	10
24	8
25	7
26	8
27	5
28	6
29	7
30	8
31	9
32	7
33	8
34	8
35	9
36	7
37	8
38	9
39	10
40	10
41	11
42	11
43	10
44	11
45	10
46	11
47	12
48	8
49	8
50	9
51	9
52	10
53	11
54	7
55	8
56	8
57	9
58	9
59	10
60	10
61	11
62	11
63	11
64	7
65	8
66	9
67	10
68	10
69	11
70	11
71	12
72	9
73	10
74	10
75	10
76	11
77	12
78	11
79	12
80	10
81	7
82	8
83	9
84	9
85	10
86	11
87	10