A137309 - cp's OEIS frontend

A137309 Let T = {1,3,5,7,9,1,3,5,7,9,1,3,5,7,9, ... }; a(n) is n-th concatenation of n numbers from T.

n	a(n)
1	1
2	35
3	791
4	3579
5	13579
6	135791
7	3579135
8	79135791
9	357913579
10	1357913579
11	13579135791
12	357913579135
13	7913579135791
14	35791357913579
15	135791357913579
16	1357913579135791
17	35791357913579135
18	791357913579135791
19	3579135791357913579

[1, 35, 791, 3579, 13579, 135791, 3579135, 79135791, 357913579, 1357913579, 13579135791, 357913579135, 7913579135791, 35791357913579, 135791357913579, 1357913579135791, 35791357913579135, 791357913579135791, 3579135791357913579]

cp's OEIS Frontend

A137309 Let T = {1,3,5,7,9,1,3,5,7,9,1,3,5,7,9, ... }; a(n) is n-th concatenation of n numbers from T.

Table of values

List of values