A140361 - cp's OEIS frontend

A140361 Number of additions, subtractions, or multiplications necessary to reach n starting from 1 and 2.

n	a(n)
0	0
1	0
2	0
3	1
4	1
5	2
6	2
7	3
8	2
9	2
10	3
11	3
12	3
13	4
14	3
15	3
16	2
17	3
18	3
19	4
20	3
21	4
22	4
23	4
24	3
25	3
26	4
27	3
28	4
29	4
30	4
31	4
32	3
33	4
34	4
35	4
36	3
37	4
38	4
39	4
40	4
41	5
42	4
43	5
44	5
45	4
46	5
47	5
48	4
49	4
50	4
51	5
52	5
53	5
54	4
55	5
56	4
57	5
58	5
59	5
60	4
61	5
62	4
63	4
64	3
65	4
66	4
67	5
68	4
69	5
70	5
71	5
72	4
73	5
74	5
75	4
76	5
77	5
78	4
79	4
80	4
81	3
82	4
83	4
84	4
85	5
86	5
87	5
88	5
89	5
90	4
91	5
92	5
93	5
94	5
95	5
96	4
97	5
98	5
99	4

[0, 0, 0, 1, 1, 2, 2, 3, 2, 2, 3, 3, 3, 4, 3, 3, 2, 3, 3, 4, 3, 4, 4, 4, 3, 3, 4, 3, 4, 4, 4, 4, 3, 4, 4, 4, 3, 4, 4, 4, 4, 5, 4, 5, 5, 4, 5, 5, 4, 4, 4, 5, 5, 5, 4, 5, 4, 5, 5, 5, 4, 5, 4, 4, 3, 4, 4, 5, 4, 5, 5, 5, 4, 5, 5, 4, 5, 5, 4, 4, 4, 3, 4, 4, 4, 5, 5, 5, 5, 5, 4, 5, 5, 5, 5, 5, 4, 5, 5, 4]

cp's OEIS Frontend

A140361 Number of additions, subtractions, or multiplications necessary to reach n starting from 1 and 2.

Table of values

List of values

n	a(n)
0	0
1	0
2	0
3	1
4	1
5	2
6	2
7	3
8	2
9	2
10	3
11	3
12	3
13	4
14	3
15	3
16	2
17	3
18	3
19	4
20	3
21	4
22	4
23	4
24	3
25	3
26	4
27	3
28	4
29	4
30	4
31	4
32	3
33	4
34	4
35	4
36	3
37	4
38	4
39	4
40	4
41	5
42	4
43	5
44	5
45	4
46	5
47	5
48	4
49	4
50	4
51	5
52	5
53	5
54	4
55	5
56	4
57	5
58	5
59	5
60	4
61	5
62	4
63	4
64	3
65	4
66	4
67	5
68	4
69	5
70	5
71	5
72	4
73	5
74	5
75	4
76	5
77	5
78	4
79	4
80	4
81	3
82	4
83	4
84	4
85	5
86	5
87	5
88	5
89	5
90	4
91	5
92	5
93	5
94	5
95	5
96	4
97	5
98	5
99	4

n	a(n)
0	0
1	0
2	0
3	1
4	1
5	2
6	2
7	3
8	2
9	2
10	3
11	3
12	3
13	4
14	3
15	3
16	2
17	3
18	3
19	4
20	3
21	4
22	4
23	4
24	3
25	3
26	4
27	3
28	4
29	4
30	4
31	4
32	3
33	4
34	4
35	4
36	3
37	4
38	4
39	4
40	4
41	5
42	4
43	5
44	5
45	4
46	5
47	5
48	4
49	4
50	4
51	5
52	5
53	5
54	4
55	5
56	4
57	5
58	5
59	5
60	4
61	5
62	4
63	4
64	3
65	4
66	4
67	5
68	4
69	5
70	5
71	5
72	4
73	5
74	5
75	4
76	5
77	5
78	4
79	4
80	4
81	3
82	4
83	4
84	4
85	5
86	5
87	5
88	5
89	5
90	4
91	5
92	5
93	5
94	5
95	5
96	4
97	5
98	5
99	4

n	a(n)
0	0
1	0
2	0
3	1
4	1
5	2
6	2
7	3
8	2
9	2
10	3
11	3
12	3
13	4
14	3
15	3
16	2
17	3
18	3
19	4
20	3
21	4
22	4
23	4
24	3
25	3
26	4
27	3
28	4
29	4
30	4
31	4
32	3
33	4
34	4
35	4
36	3
37	4
38	4
39	4
40	4
41	5
42	4
43	5
44	5
45	4
46	5
47	5
48	4
49	4
50	4
51	5
52	5
53	5
54	4
55	5
56	4
57	5
58	5
59	5
60	4
61	5
62	4
63	4
64	3
65	4
66	4
67	5
68	4
69	5
70	5
71	5
72	4
73	5
74	5
75	4
76	5
77	5
78	4
79	4
80	4
81	3
82	4
83	4
84	4
85	5
86	5
87	5
88	5
89	5
90	4
91	5
92	5
93	5
94	5
95	5
96	4
97	5
98	5
99	4