Sum of cubes of first n Fibonacci numbers.

Terms

a(0) =0a(1) =1a(2) =2a(3) =10a(4) =37a(5) =162a(6) =674a(7) =2871a(8) =12132a(9) =51436a(10) =217811a(11) =922780a(12) =3908764a(13) =16558101a(14) =70140734a(15) =297121734a(16) =1258626537a(17) =5331629710a(18) =22585142414a(19) =95672204155a(20) =405273951280