Question 129389
First positive integer is 48.
(48+1) = 49 (ie 7 squared) 
(48/2) = 24 
(24+1) = 25 (ie 5 squared)
.
Next positive integer is 1680
(1680+1) = 1681 (ie 41 squared) 
(1680/2) = 840 
(840+1) = 841 (ie 29 squared)
.
Next positive integer is 57120
(57120+1) = 57121 (ie 239 squared) 
(57120/2) = 28560 
(28560+1) = 28561 (ie 169 squared)
. 
Note if the condition that the integer had to be positive was not included then the first integer would be 0
(0+1) = 1 (ie 1 squared) 
(0/2) = 0 
(0+1) = 1 (ie 1 squared)
. Try also 1940448