Defined by a chi-inequality greedy algorithm.

Terms

a(0) =1a(1) =2a(2) =4a(3) =6a(4) =9a(5) =12a(6) =15a(7) =18a(8) =21a(9) =24a(10) =28a(11) =32a(12) =36a(13) =40a(14) =45a(15) =50a(16) =55a(17) =60a(18) =65a(19) =70a(20) =75a(21) =80a(22) =85a(23) =90a(24) =96a(25) =102a(26) =108a(27) =114a(28) =120a(29) =126