Sum of two powers of 11.

Terms

a(0) =2a(1) =12a(2) =22a(3) =122a(4) =132a(5) =242a(6) =1332a(7) =1342a(8) =1452a(9) =2662a(10) =14642a(11) =14652a(12) =14762a(13) =15972a(14) =29282a(15) =161052a(16) =161062a(17) =161172a(18) =162382a(19) =175692a(20) =322102a(21) =1771562a(22) =1771572a(23) =1771682a(24) =1772892a(25) =1786202a(26) =1932612a(27) =3543122a(28) =19487172a(29) =19487182