id:A055402 - OEIS Search Results

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Representation requires n cubes with greedy algorithm.

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1, 2, 3, 4, 5, 6, 7, 15, 23, 50, 114, 330, 1330, 10591, 215970, 19464802, 16542386125, 409477218238718, 1594640520554911022654, 12254971660196485116306102211582, 8256321288165573196207266557193504883194549246 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`a(n) = a(n-1) + ceiling[sqrt(a(n-1)/3+1/4)-1/2]^3`
	EXAMPLE	`a(11) =114 =64+27+8+8+1+1+1+1+1+1+1`
	CROSSREFS	`Cf. A006892, A055401.` `Sequence in context: A032942 A115308 A146028 this_sequence A065640 A004836 A039030` `Adjacent sequences: A055399 A055400 A055401 this_sequence A055403 A055404 A055405`
	KEYWORD	`nonn`
	AUTHOR	`Henry Bottomley (se16(AT)btinternet.com), May 16 2000`
	EXTENSIONS	`More terms from Vladeta Jovovic (vladeta(AT)Eunet.yu), Jul 03 2001`

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Last modified November 21 14:49 EST 2008. Contains 150807 sequences.

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