(1/4) times obverse convolution (2)**(2^n + 1); see Comments.

A376322

(1/4) times obverse convolution (2)**(2^n + 1); see Comments.

Terms

    a(0) =1a(1) =5a(2) =35a(3) =385a(4) =7315a(5) =256025a(6) =17153675a(7) =2247131425a(8) =582007039075

External references