Duplicate of A087710.

Terms

a(0) =6a(1) =10a(2) =14a(3) =7a(4) =8a(5) =31a(6) =35a(7) =17a(8) =43a(9) =40a(10) =229a(11) =248a(12) =212a(13) =818a(14) =799a(15) =733a(16) =151a(17) =2191a(18) =1139a(19) =20894