Centered hecatonicosachoral numbers.

Terms

a(0) =1a(1) =1441a(2) =11521a(3) =44641a(4) =122401a(5) =273601a(6) =534241a(7) =947521a(8) =1563841a(9) =2440801a(10) =3643201a(11) =5243041a(12) =7319521a(13) =9959041a(14) =13255201a(15) =17308801a(16) =22227841a(17) =28127521a(18) =35130241a(19) =43365601a(20) =52970401a(21) =64088641a(22) =76871521a(23) =91477441a(24) =108072001a(25) =126828001a(26) =147925441a(27) =171551521a(28) =197900641