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 A179456 Triangle read by rows: number of permutation trees of power n and height <= n - k. 3
 1, 1, 2, 1, 6, 5, 1, 24, 23, 9, 1, 120, 119, 68, 14, 1, 720, 719, 517, 152, 20, 1, 5040, 5039, 4163, 1581, 292, 27, 1, 40320, 40319, 36180, 16776, 3917, 508, 35, 1, 362880, 362879, 341733, 186030, 52029, 8489, 823, 44, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 COMMENTS Partial row sums of A179454 starting from the diagonal. Special case: A179456(n,n-2) = A000096(n) for n > 1. LINKS Peter Luschny, Permutation trees. EXAMPLE 1, 1, 2, 1, 6, 5, 1, 24, 23, 9, 1, 120, 119, 68, 14, 1, 720, 719, 517, 152, 20, 1, 5040, 5039, 4163, 1581, 292, 27, 1, 40320, 40319, 36180, 16776, 3917, 508, 35, 1, 362880, 362879, 341733, 186030, 52029, 8489, 823, 44, 1 CROSSREFS Cf. A179454, A179455. Sequence in context: A116395 A159924 A133367 * A214152 A121576 A121575 Adjacent sequences:  A179453 A179454 A179455 * A179457 A179458 A179459 KEYWORD nonn,tabf AUTHOR Peter Luschny, Aug 11 2010 STATUS approved

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Last modified September 21 21:21 EDT 2018. Contains 315262 sequences. (Running on oeis4.)