a(n) is the smallest number that cannot be obtained from the numbers {1,3,...,2*n-1} using each number at most once and the operators +, -, *, /, where intermediate subexpressions must be integers.

A071313

a(n) is the smallest number that cannot be obtained from the numbers {1,3,...,2*n-1} using each number at most once and the operators +, -, *, /, where intermediate subexpressions must be integers.

Terms

    a(0) =2a(1) =5a(2) =11a(3) =41a(4) =92a(5) =733a(6) =4337a(7) =28972a(8) =195098a(9) =1797746

External references