Number of compositions of n into square parts k^2 where there are k sorts of part k^2.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =5a(6) =7a(7) =9a(8) =15a(9) =28a(10) =45a(11) =66a(12) =99a(13) =164a(14) =269a(15) =422a(16) =651a(17) =1028a(18) =1654a(19) =2637a(20) =4149a(21) =6522a(22) =10350a(23) =16467a(24) =26091a(25) =41205a(26) =65174a(27) =103339a(28) =163833a(29) =259361