A358154 - cp's OEIS frontend

A358154 a(n) is the smallest composite number obtained by appending one or more 1's to n.

n	a(n)
1	111
2	21
3	3111
4	411
5	51
6	611
7	711
8	81
9	91
10	1011
11	111
12	121
13	1311
14	141
15	15111
16	161
17	171
18	18111
19	1911
20	201
21	21111
22	221
23	231
24	24111
25	2511
26	261
27	27111
28	2811
29	291
30	301
31	3111
32	321
33	3311
34	341
35	351
36	361
37	371
38	381
39	391
40	4011
41	411
42	42111
43	4311
44	441
45	451
46	4611
47	471
48	481
49	4911
50	501
51	511
52	5211
53	531
54	5411

[111, 21, 3111, 411, 51, 611, 711, 81, 91, 1011, 111, 121, 1311, 141, 15111, 161, 171, 18111, 1911, 201, 21111, 221, 231, 24111, 2511, 261, 27111, 2811, 291, 301, 3111, 321, 3311, 341, 351, 361, 371, 381, 391, 4011, 411, 42111, 4311, 441, 451, 4611, 471, 481, 4911, 501, 511, 5211, 531, 5411]

cp's OEIS Frontend

A358154 a(n) is the smallest composite number obtained by appending one or more 1's to n.

Table of values

List of values