Convolution of natural numbers >= 3 and Fibonacci numbers.

Terms

a(0) =3a(1) =7a(2) =15a(3) =28a(4) =50a(5) =86a(6) =145a(7) =241a(8) =397a(9) =650a(10) =1060a(11) =1724a(12) =2799a(13) =4539a(14) =7355a(15) =11912a(16) =19286a(17) =31218a(18) =50525a(19) =81765a(20) =132313a(21) =214102a(22) =346440a(23) =560568a(24) =907035a(25) =1467631a(26) =2374695a(27) =3842356a(28) =6217082a(29) =10059470