Golden rectangle numbers: n * A007067(n).

Terms

a(0) =0a(1) =2a(2) =6a(3) =15a(4) =24a(5) =40a(6) =60a(7) =77a(8) =104a(9) =135a(10) =160a(11) =198a(12) =228a(13) =273a(14) =322a(15) =360a(16) =416a(17) =476a(18) =522a(19) =589a(20) =640a(21) =714a(22) =792a(23) =851a(24) =936a(25) =1000a(26) =1092a(27) =1188a(28) =1260a(29) =1363