id:A000643 - OEIS Search Results

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a(n)=a(n-1) + 2^a(n-2).

+0
3

0, 0, 1, 2, 4, 8, 24, 280, 16777496, 1942668892225729070919461906823518906642406839052139521251812409738904285205225275672 (list; graph; listen)

	OFFSET	`0,4`
	REFERENCES	`D. E. Knuth, personal communication.`
	CROSSREFS	`Cf. A000659.` `Adjacent sequences: A000640 A000641 A000642 this_sequence A000644 A000645 A000646` `Sequence in context: A002908 A004528 A066535 this_sequence A112285 A037170 A006399`
	KEYWORD	`nonn,easy`
	AUTHOR	`njas`
	EXTENSIONS	`1 more term from Vladeta Jovovic (vladeta(AT)Eunet.yu), Mar 19 2000`

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Last modified October 11 13:47 EDT 2008. Contains 144830 sequences.