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A156102 2^(n+1)*P_n(1/2) (see A155100). 1
1, 1, 5, 10, 70, 440, 4280, 44560, 575920, 8224640, 134583680, 2422639360, 48232203520, 1044455459840, 24541639470080, 620471213148160, 16815502865029120, 485975291876311040, 14924807659888148480, 485281269068774440960, 16656262639515411742720, 601766641496428795658240 (list; graph; refs; listen; history; text; internal format)
OFFSET
-1,3
LINKS
CROSSREFS
Sequence in context: A174937 A180851 A056316 * A120834 A089745 A356820
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Nov 05 2009
STATUS
approved

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Last modified March 29 10:59 EDT 2024. Contains 371277 sequences. (Running on oeis4.)