A101682 Expansion of 2 - exp(-1 + sqrt(1-4x)).

1, 2, 0, 8, 80, 1152, 21056, 467840, 12248064, 369313280, 12605643776, 480491716608, 20231074672640, 932551401807872, 46708494389084160, 2525988902617776128, 146694190329387352064, 9105143756032486932480

Offset: 0

Author

Ralf Stephan, Dec 13 2004

Keywords

• nonn

Crossrefs

Cf. A000806.