A356640 - cp's OEIS frontend

A356640 a(n) is the least number k such that the least base in which k is a Niven number is n, i.e., A356552(k) = n, or -1 if no such k exists.

n	a(n)
2	1
3	3
4	50
5	5
6	44
7	7
8	161
9	119
10	201
11	11
12	253
13	13
14	494
15	226
16	1444
17	17
18	799
19	19
20	437
21	1189
22	957
23	23
24	1081
25	2263
26	755
27	767
28	927
29	29
30	932
31	31
32	1147
33	5141
34	1191
35	1226
36	2009
37	37
38	1517
39	1522
40	1641
41	41
42	1927
43	43
44	2021
45	2026
46	2164
47	47
48	2491
49	4559
50	5001
51	2602
52	2757
53	53
54	2972

[1, 3, 50, 5, 44, 7, 161, 119, 201, 11, 253, 13, 494, 226, 1444, 17, 799, 19, 437, 1189, 957, 23, 1081, 2263, 755, 767, 927, 29, 932, 31, 1147, 5141, 1191, 1226, 2009, 37, 1517, 1522, 1641, 41, 1927, 43, 2021, 2026, 2164, 47, 2491, 4559, 5001, 2602, 2757, 53, 2972]

cp's OEIS Frontend

A356640 a(n) is the least number k such that the least base in which k is a Niven number is n, i.e., A356552(k) = n, or -1 if no such k exists.

Table of values

List of values