

A165212


The nth term in the sequence is the minimal number that has some subset of DPS's that form an nterm arithmetic progression.


0




OFFSET

1,2


COMMENTS

Definition: m is a DPS (divisor pair sum) for n, if m = d + n/d where d  n, and d <= n/d.


LINKS



EXAMPLE

72's solution: 3+24, 4+18, 8+9. The difference between terms is 5. (Note: 72 = 3*24 = 4*18 = 8*9)


CROSSREFS



KEYWORD

hard,nonn


AUTHOR



STATUS

approved



