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A123511 Arises in the normal ordering of functions of a*(a+)*a, where a and a+ are the boson annihilation and creation operators, respectively. 5
8, 70, 680, 7315, 86576, 1119468, 15710640, 237885285, 3865865080, 67113398066, 1239550196248, 24267176759735, 501941612835040, 10936819334789720, 250370971426742496, 6007479214999260873 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

FORMULA

E.g.f.: (1/(1-x)^4)*exp(x/(1-x))*LaguerreL(3,-x/(1-x))

CROSSREFS

Cf.: A002720, A052852, A123510, A123512.

Sequence in context: A190560 A152263 A142986 * A053729 A020532 A043086

Adjacent sequences:  A123508 A123509 A123510 * A123512 A123513 A123514

KEYWORD

nonn

AUTHOR

Karol A. Penson (penson(AT)lptl.jussieu.fr), Oct 02 2006

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Last modified February 17 16:49 EST 2012. Contains 206058 sequences.