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.

1, 2, 12, 1680, 11880, 13366080, 96909120, 424097856000, 3100796899200, 37276043023296000, 273589847231500800, 7359037761652306329600, 54123776422857453312000, 2844359511118991175518208000

Offset: 1

Author

Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), Jul 10 2003

Keywords

• nonn

Comments

Obviously the n-th group has at most n terms.

Crossrefs

Cf. A085913, A085914, A085915.

Extensions

More terms from Ray Chandler, Sep 15 2003