Squares of plane partition numbers.

Terms

a(0) =1a(1) =1a(2) =9a(3) =36a(4) =169a(5) =576a(6) =2304a(7) =7396a(8) =25600a(9) =79524a(10) =250000a(11) =737881a(12) =2187441a(13) =6175225a(14) =17363889a(15) =47320641a(16) =127622209a(17) =336135556a(18) =876219201a(19) =2240128900a(20) =5666777284a(21) =14112014436a(22) =34772925625a(23) =84554753089a(24) =203576025636a(25) =484461937089