Fourth diagonal (M=4) sequence of triangle A113647, called Y(2,1).
A115151
Fourth diagonal (M=4) sequence of triangle A113647, called Y(2,1).
Terms
- a(0) =1a(1) =31a(2) =289a(3) =2271a(4) =16929a(5) =123871a(6) =901153a(7) =6553567a(8) =47759393a(9) =349143007a(10) =2561474593a(11) =18860670943a(12) =139371085857
External references
- oeis: A115151