From the Euler number's definition (1+1020141)102014>2.
For any nonnegative whole number n, there exists nonnegative m such that 2m≤3n≤2m+1. Different n1,n2 correspond to different m1,m2. Note that 2m≤3n≤2m+1⇔1≤2m3n≤2. There exist infinitely many different numbers 2m3n that lie in the segment [1;2].
Divide the segment [1;2] into small segments [(1+1020141)k;(1+1020141)k+1], k=0,1,…,102014. Since there are infinitely many numbers of the form 2m3n, by the pigeonhole principle there is a segment inside in which lie two different numbers 2m13n1,2m23n2. Let us denote this segment by s. In other words,
(1+1020141)s≤2m13n1<2m23n2≤(1+1020141)s+1.
From this it follows that 1<2m23n2:2m13n1≤1+1020141 and 1<2m23n13n22m1<1+1020141.
Setting an+q=3n22m1, an=3n12m2 we get 1+1020141>anan+q≥anan+1.
Continuing in this manner from the fraction anan+1 it is possible to construct a new fraction less than 1+10k1 for any natural k.
Note. limn→∞anan+1=1.