Main diagonal of A332365.

Terms

a(0) =3a(1) =13a(2) =33a(3) =73a(4) =133a(5) =237a(6) =381a(7) =593a(8) =857a(9) =1261a(10) =1757a(11) =2377a(12) =3109a(13) =4117a(14) =5273a(15) =6717a(16) =8353a(17) =10385a(18) =12665a(19) =15325a(20) =18249a(21) =21905a(22) =25921a(23) =30453a(24) =35377a(25) =41325a(26) =47749a(27) =54985a(28) =62765a(29) =71529