A047154 T(n,n-2), array T as in A047150.

1, 4, 13, 46, 162, 588, 2175, 8042, 30050, 112859, 426682, 1622775, 6191928, 23709735, 91044994, 350563516, 1353275024, 5234851541, 20287972487, 78757772777, 306202563769, 1192168270089, 4647483544430, 18138518078549

Offset

2,2

Links

Table of n, a(n) for n=2..25.

Crossrefs

Sequence in context: A104460 A095128 A149433 * A180144 A149434 A026641

Adjacent sequences: A047151 A047152 A047153 * A047155 A047156 A047157

Keyword

nonn

Author

Clark Kimberling

Status

approved