a(n) = denominator of the sum of reciprocals of the terms in n-th row of triangle A077581.
A126578
a(n) = denominator of the sum of reciprocals of the terms in n-th row of triangle A077581.
Terms
- a(0) =1a(1) =3a(2) =4a(3) =105a(4) =4a(5) =85085a(6) =40a(7) =45045a(8) =40040a(9) =66927861a(10) =2520a(11) =167133741775a(12) =27720a(13) =644658718275a(14) =16997552a(16) =240240a(18) =816816a(22) =15519504
External references
- oeis: A126578