Matrix square of triangle A113340.

Terms

a(0) =1a(1) =2a(2) =1a(3) =5a(4) =6a(5) =1a(6) =19a(7) =39a(8) =10a(9) =1a(10) =113a(11) =327a(12) =105a(13) =14a(14) =1a(15) =966a(16) =3556a(17) =1315a(18) =203a(19) =18a(20) =1a(21) =10958a(22) =48659a(23) =19875a(24) =3367a(25) =333a(26) =22a(27) =1a(28) =156700a(29) =812462