Number of sets of exactly n positive integers <= n+8 having a square element sum.

Terms

a(0) =1a(1) =3a(2) =7a(3) =20a(4) =49a(5) =110a(6) =227a(7) =435a(8) =786a(9) =1358a(10) =2259a(11) =3621a(12) =5627a(13) =8538a(14) =12655a(15) =18318a(16) =26049a(17) =36487a(18) =50236a(19) =68131a(20) =91412a(21) =121207a(22) =158659a(23) =205768a(24) =264786a(25) =337240a(26) =425738a(27) =534408a(28) =665866a(29) =822789