Number of ways to reach n by starting with any positive integer, and repeatedly adding any positive integer or multiplying by any integer greater than 1.

A348378

Number of ways to reach n by starting with any positive integer, and repeatedly adding any positive integer or multiplying by any integer greater than 1.

Terms

    a(0) =1a(1) =3a(2) =6a(3) =15a(4) =27a(5) =63a(6) =117a(7) =252a(8) =492a(9) =1008a(10) =1986a(11) =4059a(12) =8031a(13) =16182a(14) =32277a(15) =64791a(16) =129312a(17) =259188a(18) =517812a(19) =1036677a(20) =2072424a(21) =4146714a(22) =8291439a(23) =16587276a(24) =33170181a(25) =66348369a(26) =132689202a(27) =265394223a(28) =530772129a(29) =1061577642

External references