Ulam numbers that are oblong (or promic) numbers.

Terms

a(0) =2a(1) =6a(2) =72a(3) =182a(4) =1406a(5) =2550a(6) =5550a(7) =6806a(8) =9120a(9) =9702a(10) =13572a(11) =14520a(12) =14762a(13) =32580a(14) =43890a(15) =50400a(16) =51756a(17) =56882a(18) =65280a(19) =74802a(20) =78680a(21) =80940a(22) =86142a(23) =92112a(24) =96410a(25) =99540a(26) =107256a(27) =115940a(28) =120062a(29) =120756