can anybody extend this new sequence?

[Max]

Max wrote:
> Max wrote:
> 
>> So here is a couple of new term of your sequence:
>>
>>  0 7 640 170555 94949400 95830621425
> 
> And one more term:
> 
> a(7) =  159062872168200

a(8) = 404720953797785625

Max