Main diagonal of A082228.

Terms

a(0) =1a(1) =8a(2) =20a(3) =36a(4) =64a(5) =92a(6) =140a(7) =182a(8) =264a(9) =324a(10) =392a(11) =470a(12) =568a(13) =688a(14) =780a(15) =900a(16) =1042a(17) =1176a(18) =1286a(19) =1472a(20) =1636a(21) =1762a(22) =1922a(23) =2082a(24) =2270a(25) =2456a(26) =2704a(27) =2922a(28) =3174a(29) =3392