Smallest number that is centered polygonal in exactly n ways.

Terms

a(0) =4a(1) =10a(2) =19a(3) =31a(4) =61a(5) =211a(6) =181a(7) =361a(8) =631a(9) =841a(10) =1261a(11) =5461a(12) =2521a(13) =6931a(14) =18481a(15) =20791a(16) =13861a(17) =27721a(18) =41581a(19) =83161a(20) =138601a(21) =245701a(22) =235621a(23) =180181a(24) =556921a(25) =360361a(26) =540541a(27) =1670761a(28) =1081081a(29) =1413721