Numbers n such that (ceiling(sqrt(n*n/2)))^2 - n*n/2 = 17/2.

Terms

a(0) =9a(1) =15a(2) =55a(3) =89a(4) =321a(5) =519a(6) =1871a(7) =3025a(8) =10905a(9) =17631a(10) =63559a(11) =102761a(12) =370449a(13) =598935a(14) =2159135a(15) =3490849a(16) =12584361a(17) =20346159a(18) =73347031a(19) =118586105a(20) =427497825a(21) =691170471