First trisection of A061040.

Terms

a(0) =1a(1) =12a(2) =81a(3) =48a(4) =75a(5) =324a(6) =147a(7) =64a(8) =729a(9) =100a(10) =363a(11) =1296a(12) =507a(13) =588a(14) =2025a(15) =768a(16) =289a(17) =2916a(18) =361a(19) =1200a(20) =3969a(21) =1452a(22) =1587a(23) =5184a(24) =1875a(25) =676a(26) =6561a(27) =784a(28) =2523a(29) =8100