Question 884716
1      5       25      149     1193
6      30      174     1342    1193
36     204     1516    2535
240    1720    4051
1960   5771
7731
The sixth term could be 7731
See problem #880183 for an explanation
See link below
http://www.algebra.com/algebra/homework/Sequences-and-series/Sequences-and-series.faq.question.880183.html