Partial sums of the squares of Lucas numbers (A000032).

Terms

a(0) =4a(1) =5a(2) =14a(3) =30a(4) =79a(5) =200a(6) =524a(7) =1365a(8) =3574a(9) =9350a(10) =24479a(11) =64080a(12) =167764a(13) =439205a(14) =1149854a(15) =3010350a(16) =7881199a(17) =20633240a(18) =54018524a(19) =141422325a(20) =370248454a(21) =969323030a(22) =2537720639a(23) =6643838880a(24) =17393796004a(25) =45537549125a(26) =119218851374a(27) =312119004990a(28) =817138163599