A047043 T(n,n-1), array T as in A047040; T(n-1,n), array T given by A047050.

1, 1, 2, 10, 14, 56, 202, 715, 3244, 12945, 49742, 188306, 758110, 2995837, 11692368, 45296460, 178695558, 703699430, 2760976698, 10798499630, 42480767744, 167242631953, 657890399440, 2585002312353, 10177799881606

Offset

1,3

Links

Table of n, a(n) for n=1..25.

Crossrefs

Sequence in context: A102340 A358749 A293931 * A244268 A233454 A065989

Adjacent sequences: A047040 A047041 A047042 * A047044 A047045 A047046

Keyword

nonn

Author

Clark Kimberling

Status

approved