Product{k=1 to n} (A005117(k)), the product of the first n squarefree positive integers.
1, 2, 6, 30, 180, 1260, 12600, 138600, 1801800, 25225200, 378378000, 6432426000
1 seqfan posts
Sat Jan 8 20:58:17 CET 2011 [seqfan] Re: conjectured list of divisibility sequences