Group the natural numbers such that the product of the terms of the n-th group is divisible by n!. (1),(2),(3,4),(5,6,7,8),(9,10,11,12),(13,14,15,16,17,18),(19,20,21,22,23,24),... Sequence contains the product pertaining to groups.

A085912

Group the natural numbers such that the product of the terms of the n-th group is divisible by n!. (1),(2),(3,4),(5,6,7,8),(9,10,11,12),(13,14,15,16,17,18),(19,20,21,22,23,24),... Sequence contains the product pertaining to groups.

Terms

    a(0) =1a(1) =2a(2) =12a(3) =1680a(4) =11880a(5) =13366080a(6) =96909120a(7) =424097856000

External references