Sum of squared coefficients of Product_{i=0..n-1} 1+x^(2^i+1)+x^(2^(i+1)+1).

A385082

Sum of squared coefficients of Product_{i=0..n-1} 1+x^(2^i+1)+x^(2^(i+1)+1).

Terms

    a(0) =1a(1) =3a(2) =13a(3) =55a(4) =249a(5) =1121a(6) =5025a(7) =22607a(8) =101931a(9) =460877a(10) =2088687a(11) =9482763a(12) =43109307a(13) =196163983a(14) =893222041a(15) =4069162197a(16) =18543631161a(17) =84525140297a(18) =385343891847

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