A026868 T(2n+1,n+4), T given by A026747.

1, 10, 67, 380, 1976, 9771, 46845, 220232, 1022498, 4710021, 21593848, 98750485, 451158834, 2061525163, 9429060852, 43193760271, 198255105055, 912011899565, 4205605922556, 19442627224940, 90115768761346, 418762733418510

Offset

3,2

Links

Table of n, a(n) for n=3..24.

Crossrefs

Cf. A026747.

Sequence in context: A172066 A026844 A026875 * A026886 A079156 A324366

Adjacent sequences: A026865 A026866 A026867 * A026869 A026870 A026871

Keyword

nonn

Author

Clark Kimberling

Status

approved