A164796 - cp's OEIS frontend

A164796 a(n) is the smallest number whose English name has the letter "r" in the n-th position, or -1 if no such number exists.

n	a(n)
1	-1
2	-1
3	0
4	4
5	1000000000000
6	4000000000000
7	3000000000000
8	43
9	23
10	24
11	74
12	24000000000000
13	103
14	104
15	303
16	304
17	3004
18	143
19	123
20	124
21	174
22	324
23	374
24	1103
25	1104
26	1303
27	1304
28	3303
29	1143
30	1123
31	1124
32	1174
33	1324
34	1374
35	3324
36	3374
37	11374
38	13324
39	13374
40	17374
41	23324

[-1, -1, 0, 4, 1000000000000, 4000000000000, 3000000000000, 43, 23, 24, 74, 24000000000000, 103, 104, 303, 304, 3004, 143, 123, 124, 174, 324, 374, 1103, 1104, 1303, 1304, 3303, 1143, 1123, 1124, 1174, 1324, 1374, 3324, 3374, 11374, 13324, 13374, 17374, 23324]

cp's OEIS Frontend

A164796 a(n) is the smallest number whose English name has the letter "r" in the n-th position, or -1 if no such number exists.

Table of values

List of values