Oblong numbers that are the product of two oblong numbers.

Terms

a(0) =12a(1) =72a(2) =240a(3) =420a(4) =600a(5) =1260a(6) =2352a(7) =4032a(8) =6480a(9) =7140a(10) =9900a(11) =14280a(12) =14520a(13) =20592a(14) =28392a(15) =38220a(16) =46872a(17) =50400a(18) =65280a(19) =78120a(20) =83232a(21) =104652a(22) =123552a(23) =129960a(24) =159600a(25) =194040a(26) =233772a(27) =279312a(28) =291060a(29) =331200