Let bk,n be the kth element of the nth row of Pascal's triangle, with row 1 being {1}, row 2 being {1,1}, etc. Also, the 1st element of each row is 1.
Find the value of
(b3,2015)2−i=1∑2013i3.
Details and Assumptions:
- For example, b1,1=1,b2,3=2, and b5,6=5.