Numbers with exactly 2 2's in their base 4 expansion.

Terms

a(0) =10a(1) =26a(2) =34a(3) =38a(4) =40a(5) =41a(6) =43a(7) =46a(8) =58a(9) =74a(10) =90a(11) =98a(12) =102a(13) =104a(14) =105a(15) =107a(16) =110a(17) =122a(18) =130a(19) =134a(20) =136a(21) =137a(22) =139a(23) =142a(24) =146a(25) =150a(26) =152a(27) =153a(28) =155a(29) =158