Number of ways to write n as an ordered sum of 9 squares of positive integers.

Terms

a(0) =1a(1) =0a(2) =0a(3) =9a(4) =0a(5) =0a(6) =36a(7) =0a(8) =9a(9) =84a(10) =0a(11) =72a(12) =126a(13) =0a(14) =252a(15) =135a(16) =36a(17) =504a(18) =156a(19) =252a(20) =630a(21) =288a(22) =756a(23) =576a(24) =606a(25) =1260a(26) =756a(27) =1207a(28) =1260a(29) =1584