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A002723 Rotatable partitions.
(Formerly M0272 N0095)
1
1, 1, 1, 1, 2, 2, 3, 3, 5, 6, 8, 9, 11, 14, 19, 22, 28, 34, 44, 52, 63, 78, 99, 119, 144, 178, 219, 265 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

REFERENCES

N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

LINKS

Table of n, a(n) for n=1..28.

R. J. Mathar, JAVA source code

E. M. Wright, Rotatable partitions, J. London Math. Soc., 43 (1968), 501-505, q'(4,inf,n).

E. M. Wright, Rotatable partitions, J. London Math. Soc., 43 (1968), 501-505. [Annotated scanned copy]

CROSSREFS

Sequence in context: A029017 A035371 A035577 * A035937 A240201 A274158

Adjacent sequences:  A002720 A002721 A002722 * A002724 A002725 A002726

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane.

EXTENSIONS

a(17)-a(28) from R. J. Mathar, May 29 2016

STATUS

approved

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Last modified December 5 15:24 EST 2016. Contains 278770 sequences.