Numbers congruent to {2, 4, 8, 16} (mod 20).

Terms

a(0) =2a(1) =4a(2) =8a(3) =16a(4) =22a(5) =24a(6) =28a(7) =36a(8) =42a(9) =44a(10) =48a(11) =56a(12) =62a(13) =64a(14) =68a(15) =76a(16) =82a(17) =84a(18) =88a(19) =96a(20) =102a(21) =104a(22) =108a(23) =116a(24) =122a(25) =124a(26) =128a(27) =136a(28) =142a(29) =144