Consider the geometric progression 1,1/2,1/4,1/8,1/16,1/32,1/64,... Group the terms such that the n-th group contains n terms like this (1/1),(1/2,1/4),(1/8,1/16,1,32),(1/64,1/128,1/256,1/512),... a(n) = floor(1/s(n)) where s(n) is the sum of the members of the n-th group.
A081972
Consider the geometric progression 1,1/2,1/4,1/8,1/16,1/32,1/64,... Group the terms such that the n-th group contains n terms like this (1/1),(1/2,1/4),(1/8,1/16,1,32),(1/64,1/128,1/256,1/512),... a(n) = floor(1/s(n)) where s(n) is the sum of the members of the n-th group.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =34a(4) =528a(5) =16644a(6) =1056832a(7) =134744072a(8) =34426978560
External references
- oeis: A081972