A026291 a(n) = T(2n-1,n), where T is the array in A026268.

2, 14, 79, 446, 2530, 14442, 82913, 478384, 2771900, 16119808, 94038087, 550083340, 3225409094, 18951732050, 111562247565, 657813211278, 3884461464740, 22968812720476, 135978792939818

Offset: 2

Author

Clark Kimberling

Keywords

• nonn

Crossrefs

Cf. A026268.