A137383 - OEIS

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A137383

Total number of different ways to fill m labeled boxes with balls which belong to the specifications provided by all the integer partitions [n] of n. Empty boxes are not allowed. Total number of possible preferential arrangements (or hierarchical orderings) of n elements if the elements may belong to c=1 up to c=n different classes (or specifications).

1, 5, 25, 173, 20335, 45999

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

REFERENCES

John Riordan: Introduction to combinatorics New York, unabridged republication of the edition published by John Wiley & Sons, New York, 1958, ISBN 0-486-42536-3.

Percy A. MacMahon: Combinatorial Analysis, Volumes I, II bound in one volume, Chelsea Publishing Company, New York, 1960, Reprint of the two volumes published 1915, 1916 by Cambridge University Press, Library of Congress Catalog Card No. 59-10267.

LINKS

Table of n, a(n) for n=1..6.

CROSSREFS

Cf. A000079, A000670.

Sequence in context: A112242 A035341 A258369 * A049035 A047897 A204461

Adjacent sequences: A137380 A137381 A137382 * A137384 A137385 A137386

KEYWORD

nonn

AUTHOR

Thomas Wieder, Apr 09 2008

STATUS

approved