Sum of distances of numbers between successive powers of 2 (beginning with 2^1) to previous numbers with same number of prime factors, repetitions included. See example.

A176883

Sum of distances of numbers between successive powers of 2 (beginning with 2^1) to previous numbers with same number of prime factors, repetitions included. See example.

Terms

    a(0) =1a(1) =6a(2) =19a(3) =55a(4) =151a(5) =359a(6) =849a(7) =1956a(8) =4416a(9) =9861a(10) =21776a(11) =47659a(12) =103501a(13) =223362a(14) =479527a(15) =1024599a(16) =2180237a(17) =4622633a(18) =9769597a(19) =20587721a(20) =43272599a(21) =90739538a(22) =189867698a(23) =396512548a(24) =826579593a(25) =1720267980a(26) =3574753738a(27) =7417943000a(28) =15372756795a(29) =31819255488

External references