A026296 a(n) = T(2n,n+1), where T is the array in A026268.

1, 6, 38, 229, 1349, 7894, 46122, 269607, 1578035, 9251060, 54322938, 319502765, 1882040458, 11102029850, 65576732025, 387817554915, 2296120266390, 13608607411660, 80732861599612, 479372928880782

Offset: 1

Author

Clark Kimberling

Keywords

• nonn