A348240 - OEIS

A348240

a(n) = Sum_{k = 1..floor(n/2)} A003041(n-2*k).

1, 2, 8, 26, 100 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	LINKS	`Table of n, a(n) for n=1..5.` `H. Sharp, Jr., Enumeration of vacuously transitive relations, Discrete Math. 4 (1973), 185-196.`
	CROSSREFS	`Cf. A003041.` `Sequence in context: A129368 A357221 A281345 * A128238 A110156 A295934` `Adjacent sequences: A348237 A348238 A348239 * A348241 A348242 A348243`
	KEYWORD	`nonn,more`
	AUTHOR	`N. J. A. Sloane, Oct 13 2021`
	STATUS	`approved`

Last modified February 4 12:52 EST 2023. Contains 360055 sequences. (Running on oeis4.)