A026708 T(2n-1,n-2), T given by A026703.

1, 7, 39, 203, 1028, 5138, 25502, 126076, 621808, 3062202, 15065888, 74076476, 364066073, 1788762695, 8786918679, 43157674621, 211950770681, 1040830494587, 5110952704561, 25096133681015, 123225152644503, 605038125189257

Offset

2,2

Links

Table of n, a(n) for n=2..23.

Crossrefs

Sequence in context: A198767 A026752 A026379 * A016127 A099460 A246987

Adjacent sequences: A026705 A026706 A026707 * A026709 A026710 A026711

Keyword

nonn

Author

Clark Kimberling

Status

approved