Operator-oriented complexity of n, i.e., the minimum number of occurrences of +, *, and ^ needed to build n from a supply of ones.

A005208

Operator-oriented complexity of n, i.e., the minimum number of occurrences of +, *, and ^ needed to build n from a supply of ones.

Terms

    a(0) =0a(1) =1a(2) =2a(3) =3a(4) =4a(5) =4a(6) =5a(7) =4a(8) =4a(9) =5a(10) =6a(11) =6a(12) =7a(13) =7a(14) =7a(15) =5a(16) =6a(17) =6a(18) =7a(19) =7a(20) =8a(21) =8a(22) =9a(23) =7a(24) =6a(25) =7a(26) =5a(27) =6a(28) =7a(29) =8

External references