a(n) = sigma(A291789(n)).

Terms

a(0) =720a(1) =1092a(2) =1224a(3) =1350a(4) =912a(5) =2016a(6) =2352a(7) =3600a(8) =3968a(9) =4680a(10) =7068a(11) =9936a(12) =11340a(13) =13848a(14) =18872a(15) =28728a(16) =43008a(17) =59520a(18) =101520a(19) =124380a(20) =175824a(21) =189900a(22) =311040a(23) =433008a(24) =618120a(25) =747936a(26) =1330560a(27) =2219520a(28) =3930240a(29) =7607808