A235326 - OEIS

A235326

Number of ordered pairs of endofunctions f,g on a set of n elements satisfying f(f(f(x))) = g(g(g(x))).

1, 1, 4, 51, 1504, 66525, 4196856, 359031967, 39705044464, 5476674540825 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`0,3`
	LINKS	`Table of n, a(n) for n=0..9.`
	CROSSREFS	`Cf. A000248, A000949.` `Sequence in context: A293075 A300732 A220282 * A210834 A287231 A289708` `Adjacent sequences: A235323 A235324 A235325 * A235327 A235328 A235329`
	KEYWORD	`nonn,more`
	AUTHOR	`Chad Brewbaker, Mar 26 2014`
	EXTENSIONS	`a(6)-a(7) from Giovanni Resta, Mar 26 2014` `a(8)-a(9) from Giovanni Resta, Mar 28 2014`
	STATUS	`approved`

Last modified March 23 03:40 EDT 2023. Contains 361434 sequences. (Running on oeis4.)