A181754 - cp's OEIS frontend

A181754 a(1) = 1, a(2) = 2. For n >= 3, a(n) is found by concatenating the first n-1 terms of the sequence and then dividing the resulting number by a(n-1).

n	a(n)
1	1
2	2
3	6
4	21
5	601
6	21001
7	60100001
8	2100100000001
9	601000010000000000001
10	2100100000001000000000000000000001
11	6010000100000000000010000000000000000000000000000000001

[1, 2, 6, 21, 601, 21001, 60100001, 2100100000001, 601000010000000000001, 2100100000001000000000000000000001, 6010000100000000000010000000000000000000000000000000001]

cp's OEIS Frontend

A181754 a(1) = 1, a(2) = 2. For n >= 3, a(n) is found by concatenating the first n-1 terms of the sequence and then dividing the resulting number by a(n-1).

Table of values

List of values