a(1) = 1; a(n+1) = product of numerator and denominator in Sum_{k=1..n} 1/a(k).
A064170
a(1) = 1; a(n+1) = product of numerator and denominator in Sum_{k=1..n} 1/a(k).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =10a(4) =65a(5) =442a(6) =3026a(7) =20737a(8) =142130a(9) =974170a(10) =6677057a(11) =45765226a(12) =313679522a(13) =2149991425a(14) =14736260450a(15) =101003831722a(16) =692290561601
External references
- oeis: A064170