Diagonal of array A085205.

Terms

a(0) =2a(1) =15a(2) =124a(3) =153a(4) =1237a(5) =1328a(6) =1537a(7) =1628a(8) =1794a(9) =13793a(10) =14091a(11) =14797a(12) =15095a(13) =15668a(14) =17234a(15) =17532a(16) =18238a(17) =18536a(18) =19109a(19) =20244a(20) =20542a(21) =21115a(22) =22117a(23) =164867a(24) =165869a(25) =168302a(26) =169304a(27) =171307a(28) =176810a(29) =177812