Concatenation of (3n-2), (3n-1) and 3n divided by 3.

Terms

a(0) =41a(1) =152a(2) =263a(3) =33704a(4) =43805a(5) =53906a(6) =64007a(7) =74108a(8) =84209a(9) =94310a(10) =104411a(11) =114512a(12) =124613a(13) =134714a(14) =144815a(15) =154916a(16) =165017a(17) =175118a(18) =185219a(19) =195320a(20) =205421a(21) =215522a(22) =225623a(23) =235724a(24) =245825a(25) =255926a(26) =266027a(27) =276128a(28) =286229a(29) =296330