A355909 - OEIS

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A355909

Number of nodes at level n in the tree T_0 mentioned in A355905.

1, 2, 3, 4, 6, 9, 13, 19, 28, 42, 63, 94, 141, 212, 318, 477, 716, 1074, 1611, 2417, 3626, 5439, 8158, 12237 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`0,2`
	COMMENTS	`First differences give A355910.`
	LINKS	`Table of n, a(n) for n=0..23.` `Don Knuth, Ambidextrous Numbers, Preprint, September 2022. See (8.1), w_n.`
	FORMULA	`a(n) = 1 + (c(n)+c(n-1))/2 where c(n) = \|A355908(n)\|.`
	CROSSREFS	`Cf. A355904-A355908, A355910-A355913.` `Sequence in context: A121653 A238434 A061418 * A136423 A215245 A078932` `Adjacent sequences: A355906 A355907 A355908 * A355910 A355911 A355912`
	KEYWORD	`nonn,more`
	AUTHOR	`N. J. A. Sloane, Sep 19 2022`
	STATUS	`approved`

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Last modified December 7 01:11 EST 2023. Contains 367616 sequences. (Running on oeis4.)