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

Terms

a(0) =0a(1) =1a(2) =3a(3) =7a(4) =19a(5) =39a(6) =74a(7) =134a(8) =227a(9) =365a(10) =568a(11) =854a(12) =1247a(13) =1777a(14) =2479a(15) =3392a(16) =4562a(17) =6043a(18) =7898a(19) =10194a(20) =13010a(21) =16428a(22) =20547a(23) =25474a(24) =31330a(25) =38248a(26) =46370a(27) =55846a(28) =66843a(29) =79544