a(n) = denominator of b(n), where b(1)=1, b(n+1) = sum{k|n} 1/b(k).
A127940
a(n) = denominator of b(n), where b(1)=1, b(n+1) = sum{k|n} 1/b(k).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =3a(5) =8a(6) =22a(7) =71a(8) =93a(9) =638a(10) =9144a(11) =26821a(12) =2373690a(13) =11013191a(14) =950468551a(15) =23819080360
External references
- oeis: A127940