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

Terms

a(0) =0a(1) =1a(2) =2a(3) =6a(4) =13a(5) =24a(6) =43a(7) =71a(8) =110a(9) =166a(10) =242a(11) =341a(12) =469a(13) =633a(14) =838a(15) =1091a(16) =1400a(17) =1774a(18) =2219a(19) =2745a(20) =3364a(21) =4089a(22) =4933a(23) =5904a(24) =7015a(25) =8279a(26) =9713a(27) =11338a(28) =13172a(29) =15230