a(1)=7; a(n),a(n+1) are smallest > a(n-1) such that a(n-1)^2+a(n)^2=a(n+1)^2.

Terms

a(0) =7a(1) =24a(2) =25a(3) =60a(4) =65a(5) =72a(6) =97a(7) =4704a(8) =4705a(9) =11292a(10) =12233a(11) =79044a(12) =79985a(13) =124212a(14) =147737a(15) =430416a(16) =455065a(17) =504072a(18) =679097a(19) =24502296a(20) =24511705a(21) =34278300a(22) =42140545a(23) =68012700a(24) =80009705a(25) =192023292a(26) =208025233a(27) =356427144a(28) =412692145a(29) =990461148