**a(n) = Sum_{ r = 0 to n} L(n,r), where L(n,r) (A067049) = LCM (n, n-1, n-2, ..., n-r+1)/ LCM ( 1,2,3,...r).**

*1, 2, 4, 8, 14, 32, 39, 114, 166, 266, 421, 1608, 1005, 3980, 6894, 4206, 8666, 40904*

*1 seqfan posts*

Index of A-numbers in seqfan: by ascending order by month by frequency by keyword

Links to OEIS content are included according to The OEIS End-User License Agreement .