[seqfan] Re: a question about triangular numbers

[franktaw at netscape.net]

Well, trivially a(n) >= n/3.

Franklin T. Adams-Watters

-----Original Message-----
From: Tanya Khovanova <mathoflove-seqfan at yahoo.com>

Right,

Not any number is a sum of two triangular numbers. When n - (the 
largest
triangular not exceeding n) can't be represented as a sum of two 
triangles, we
get a drop out.

Is there any lower bound for this sequence?