Number of sets of exactly n positive integers <= n+6 having a square element sum.

Terms

a(0) =1a(1) =2a(2) =5a(3) =11a(4) =23a(5) =43a(6) =74a(7) =124a(8) =197a(9) =296a(10) =434a(11) =627a(12) =875a(13) =1188a(14) =1600a(15) =2128a(16) =2755a(17) =3522a(18) =4511a(19) =5661a(20) =6983a(21) =8637a(22) =10610a(23) =12781a(24) =15343a(25) =18497a(26) =21937a(27) =25751a(28) =30416a(29) =35702