A384480 - cp's OEIS frontend

A384480 Square array read by antidiagonals: T(n,k) is the length of a shortest addition-composition chain for n*x+k, starting with 1 and x; n, k >= 0.

n	a(n)
0	0
1	0
2	0
3	1
4	1
5	1
6	2
7	2
8	2
9	2
10	2
11	3
12	2
13	3
14	2
15	3
16	3
17	3
18	3
19	3
20	3
21	3
22	4
23	3
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	5
38	4
39	4
40	3
41	4
42	4
43	5
44	3
45	4
46	4
47	4
48	4
49	4
50	4
51	4
52	5
53	4
54	3
55	4
56	5
57	4
58	5
59	3
60	4
61	4
62	5
63	4
64	4
65	4
66	5
67	5
68	5
69	5
70	4
71	4
72	4
73	5
74	4
75	5
76	5
77	4
78	4
79	5
80	5
81	5
82	4
83	4
84	4
85	5
86	4
87	4
88	5
89	5
90	4

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

cp's OEIS Frontend

A384480 Square array read by antidiagonals: T(n,k) is the length of a shortest addition-composition chain for n*x+k, starting with 1 and x; n, k >= 0.

Table of values

List of values

n	a(n)
0	0
1	0
2	0
3	1
4	1
5	1
6	2
7	2
8	2
9	2
10	2
11	3
12	2
13	3
14	2
15	3
16	3
17	3
18	3
19	3
20	3
21	3
22	4
23	3
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	5
38	4
39	4
40	3
41	4
42	4
43	5
44	3
45	4
46	4
47	4
48	4
49	4
50	4
51	4
52	5
53	4
54	3
55	4
56	5
57	4
58	5
59	3
60	4
61	4
62	5
63	4
64	4
65	4
66	5
67	5
68	5
69	5
70	4
71	4
72	4
73	5
74	4
75	5
76	5
77	4
78	4
79	5
80	5
81	5
82	4
83	4
84	4
85	5
86	4
87	4
88	5
89	5
90	4

n	a(n)
0	0
1	0
2	0
3	1
4	1
5	1
6	2
7	2
8	2
9	2
10	2
11	3
12	2
13	3
14	2
15	3
16	3
17	3
18	3
19	3
20	3
21	3
22	4
23	3
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	5
38	4
39	4
40	3
41	4
42	4
43	5
44	3
45	4
46	4
47	4
48	4
49	4
50	4
51	4
52	5
53	4
54	3
55	4
56	5
57	4
58	5
59	3
60	4
61	4
62	5
63	4
64	4
65	4
66	5
67	5
68	5
69	5
70	4
71	4
72	4
73	5
74	4
75	5
76	5
77	4
78	4
79	5
80	5
81	5
82	4
83	4
84	4
85	5
86	4
87	4
88	5
89	5
90	4

n	a(n)
0	0
1	0
2	0
3	1
4	1
5	1
6	2
7	2
8	2
9	2
10	2
11	3
12	2
13	3
14	2
15	3
16	3
17	3
18	3
19	3
20	3
21	3
22	4
23	3
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	5
38	4
39	4
40	3
41	4
42	4
43	5
44	3
45	4
46	4
47	4
48	4
49	4
50	4
51	4
52	5
53	4
54	3
55	4
56	5
57	4
58	5
59	3
60	4
61	4
62	5
63	4
64	4
65	4
66	5
67	5
68	5
69	5
70	4
71	4
72	4
73	5
74	4
75	5
76	5
77	4
78	4
79	5
80	5
81	5
82	4
83	4
84	4
85	5
86	4
87	4
88	5
89	5
90	4