Number of ways of writing n as a sum of 7 squares.

Terms

a(0) =1a(1) =14a(2) =84a(3) =280a(4) =574a(5) =840a(6) =1288a(7) =2368a(8) =3444a(9) =3542a(10) =4424a(11) =7560a(12) =9240a(13) =8456a(14) =11088a(15) =16576a(16) =18494a(17) =17808a(18) =19740a(19) =27720a(20) =34440a(21) =29456a(22) =31304a(23) =49728a(24) =52808a(25) =43414a(26) =52248a(27) =68320a(28) =74048a(29) =68376