Golden rectangle numbers: F(n) * F(n+1), where F(n) = A000045(n) (Fibonacci numbers).

Terms

a(0) =0a(1) =1a(2) =2a(3) =6a(4) =15a(5) =40a(6) =104a(7) =273a(8) =714a(9) =1870a(10) =4895a(11) =12816a(12) =33552a(13) =87841a(14) =229970a(15) =602070a(16) =1576239a(17) =4126648a(18) =10803704a(19) =28284465a(20) =74049690a(21) =193864606a(22) =507544127a(23) =1328767776a(24) =3478759200a(25) =9107509825a(26) =23843770274a(27) =62423800998a(28) =163427632719a(29) =427859097160