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A048609 Duplicate of A048603. 0
1, 12, 160, 40320, 71680, 1277337600, 79705866240, 167382319104000 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
S. Dulucq, Etude combinatoire de problèmes d'énumération, d'algorithmique sur les arbres et de codage par des mots, a thesis presented to l'Université de Bordeaux I, 1987. (Annotated scanned copy)
CROSSREFS
Cf. A048603.
Sequence in context: A019578 A144346 A167558 * A048603 A275040 A109391
KEYWORD
dead
STATUS
approved

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Last modified April 25 07:53 EDT 2024. Contains 371964 sequences. (Running on oeis4.)