A047042 T(n,n), array T as in A047040; T(n,n), array T given by A047050.

1, 1, 2, 5, 14, 56, 202, 715, 2529, 9701, 36797, 138564, 520062, 1999679, 7700373, 29612097, 113722740, 440354696, 1709283358, 6637835682, 25773923006, 100398993203, 391785231463, 1530125311638, 5978033636691, 23390474605783

Offset

0,3

Links

Table of n, a(n) for n=0..25.

Crossrefs

Sequence in context: A122594 A267559 A047136 * A174795 A243551 A110043

Adjacent sequences: A047039 A047040 A047041 * A047043 A047044 A047045

Keyword

nonn

Author

Clark Kimberling

Status

approved