A213924 - cp's OEIS frontend

A213924 Minimal lengths of formulas representing n only using addition, exponentiation and the constant 1.

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

[1, 3, 5, 7, 9, 11, 13, 9, 9, 11, 13, 15, 17, 19, 21, 11, 13, 15, 17, 19, 21, 23, 25, 21, 13, 15, 11, 13, 15, 17, 19, 13, 15, 17, 19, 15, 17, 19, 21, 23, 23, 25, 23, 25, 25, 27, 29, 25, 17, 19, 21, 23, 25, 23, 25, 27, 27, 27, 25, 27, 29, 31, 27, 13, 15, 17, 19, 21, 23, 25, 27, 23, 23, 25, 27, 29, 31, 33]

cp's OEIS Frontend

A213924 Minimal lengths of formulas representing n only using addition, exponentiation and the constant 1.

Table of values

List of values

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

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

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