A228839 - OEIS

A228839

Erroneous version of A000453.

0, 0, 0, 1, 20, 65, 350

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

OFFSET

1,5

COMMENTS

This is column k=4 of the table on that page.

REFERENCES

M. Barbut and B. Monjardet, Ordre et classification - algèbre et combinatoire - tome II, Série Méthodes Mathématiques des Sciences de l'Homme, Hachette, Paris, 1970, page 101.

LINKS

Table of n, a(n) for n=1..7.

EXAMPLE

The fifth term (20) is a typo for 10.

There is another error in this table in the book (entry for k=6, n=7 should be 21 instead of 20) leading to an incorrect row sum of 876 instead of 877 for the n=7 Bell number.

CROSSREFS

Cf. A000453.

Sequence in context: A246877 A074632 A225190 * A331096 A304253 A330931

Adjacent sequences: A228836 A228837 A228838 * A228840 A228841 A228842

KEYWORD

dead

AUTHOR

Olivier Gérard, Sep 05 2013 based on emails by Antreas P. Hatzipolakis (anopolis72 (AT) gmail.com) and R. J. Mathar

STATUS

approved