Erroneous version of A027435.

Terms

a(0) =1a(1) =2a(2) =4a(3) =6a(4) =10a(5) =11a(6) =17a(7) =21a(8) =27a(9) =29a(10) =39a(11) =42a(12) =54a(13) =58a(14) =63a(15) =71a(16) =87a(17) =90a(18) =108a(19) =114a(20) =121a(21) =126