0,2
Arises in the boson normal ordering problem
Sequence in context: A035742 A017757 A084238 * A093007 A033415 A067266
Adjacent sequences: A127454 A127455 A127456 * A127458 A127459 A127460
nonn
Karol A. Penson (penson(AT)lptl.jussieu.fr), Jan 15 2007