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

Terms

a(0) =1a(1) =1a(2) =3a(3) =13a(4) =34a(5) =86a(6) =197a(7) =405a(8) =786a(9) =1446a(10) =2532a(11) =4263a(12) =6938a(13) =10953a(14) =16837a(15) =25281a(16) =37165a(17) =53605a(18) =75999a(19) =106075a(20) =145951a(21) =198199a(22) =265921a(23) =352825a(24) =463320a(25) =602609a(26) =776797a(27) =993007a(28) =1259503a(29) =1585839