a(n) = 729000*n - 180.

Terms

a(0) =728820a(1) =1457820a(2) =2186820a(3) =2915820a(4) =3644820a(5) =4373820a(6) =5102820a(7) =5831820a(8) =6560820a(9) =7289820a(10) =8018820a(11) =8747820a(12) =9476820a(13) =10205820a(14) =10934820a(15) =11663820a(16) =12392820a(17) =13121820a(18) =13850820a(19) =14579820a(20) =15308820a(21) =16037820a(22) =16766820a(23) =17495820