A360964 - cp's OEIS frontend

A360964 Triangle T(n, k), n > 0, k = 0..n-1, read by rows: T(n, k) is the least base b >= 2 where the number of digits of n and k are different.

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

[2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 5, 2, 2, 2, 2, 5, 6, 2, 2, 2, 2, 5, 6, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 3, 10, 2, 2, 2, 2, 2, 2, 2, 2, 3, 10, 11, 2, 2, 2, 2, 2, 2, 2, 2, 3, 10, 11, 12, 2, 2, 2, 2, 2, 2, 2, 2, 3, 10, 11, 12, 13]

cp's OEIS Frontend

A360964 Triangle T(n, k), n > 0, k = 0..n-1, read by rows: T(n, k) is the least base b >= 2 where the number of digits of n and k are different.

Table of values

List of values

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

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

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