Convolution of Fibonacci numbers 1,2,3,5,... with themselves.

Terms

a(0) =1a(1) =4a(2) =10a(3) =22a(4) =45a(5) =88a(6) =167a(7) =310a(8) =566a(9) =1020a(10) =1819a(11) =3216a(12) =5645a(13) =9848a(14) =17090a(15) =29522a(16) =50793a(17) =87080a(18) =148819a(19) =253610a(20) =431086a(21) =731064a(22) =1237175a(23) =2089632a(24) =3523225a(25) =5930668a(26) =9968122a(27) =16730830a(28) =28045221a(29) =46954360