a(n) = Sum_{c in P(n)} lcm(c) where P(n) is the set of all subsets of {1,2,...,n}.
A226037
a(n) = Sum_{c in P(n)} lcm(c) where P(n) is the set of all subsets of {1,2,...,n}.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =24a(4) =88a(5) =528a(6) =1392a(7) =11136a(8) =41856a(9) =192192a(10) =516032a(11) =6192384a(12) =13270272a(13) =185783808a(14) =511526400a(15) =1163742720a(16) =4403449344a(17) =79262088192a(18) =199280729088
External references
- oeis: A226037