Exponential convolution of Fibonacci numbers with themselves (divided by 2).

Terms

a(0) =0a(1) =0a(2) =1a(3) =3a(4) =11a(5) =35a(6) =115a(7) =371a(8) =1203a(9) =3891a(10) =12595a(11) =40755a(12) =131891a(13) =426803a(14) =1381171a(15) =4469555a(16) =14463795a(17) =46805811a(18) =151466803a(19) =490156851a(20) =1586180915a(21) =5132989235a(22) =16610702131a(23) =53753361203a(24) =173949530931a(25) =562912506675