Row square-sums of triangle A210658.

Terms

a(0) =1a(1) =5a(2) =29a(3) =219a(4) =2011a(5) =20911a(6) =235543a(7) =2801821a(8) =34667941a(9) =441977129a(10) =5768828529a(11) =76743400197