The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A003510

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A003510

An equivalence relation on permutations.
(history; published version)

#29 by Michael De Vlieger at Mon Jan 31 06:47:43 EST 2022

STATUS

reviewed

approved

#28 by Joerg Arndt at Mon Jan 31 03:09:12 EST 2022

STATUS

proposed

reviewed

#27 by Michel Marcus at Mon Jan 31 02:35:45 EST 2022

STATUS

editing

proposed

#26 by Michel Marcus at Mon Jan 31 02:35:43 EST 2022

CROSSREFS

Cf. A000010.

STATUS

proposed

editing

#25 by Jon E. Schoenfield at Mon Jan 31 01:25:32 EST 2022

STATUS

editing

proposed

#24 by Jon E. Schoenfield at Mon Jan 31 01:25:30 EST 2022

FORMULA

E.g.f.: exp ( Sum_{ij>=1..inf} x^i j / ij*phi(ij) ), where phi = Euler phi function (A000010).

AUTHOR

N. J. A. Sloane.

STATUS

approved

editing

#23 by Bruno Berselli at Thu Jun 06 04:21:01 EDT 2019

STATUS

proposed

approved

#22 by Michel Marcus at Thu Jun 06 03:40:31 EDT 2019

STATUS

editing

proposed

#21 by Michel Marcus at Thu Jun 06 03:40:27 EDT 2019

REFERENCES

R. P. Stanley, Problem 5932, Amer. Math. Monthly, 82 (1975), 86-87.

LINKS

Richard Stanley and Albert Nijenhuis, <a href="https://www.jstor.org/stable/2319149">Problem 5932</a>, Amer. Math. Monthly, 82 (1975), 86-87.

STATUS

approved

editing

#20 by Bruno Berselli at Mon Jul 22 10:52:06 EDT 2013

STATUS

editing

approved