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A002723 Number of rotatable partitions of [n].
(Formerly M0272 N0095)
2
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
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
Cf. A002722.
Sequence in context: A029017 A035371 A035577 * A035937 A240201 A274158
KEYWORD
nonn,more
AUTHOR
EXTENSIONS
a(17)-a(28) from R. J. Mathar, May 29 2016
STATUS
approved

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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)