id:A008463 - OEIS Search Results

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Take sum of squares of digits of previous term.

+0
1

9, 81, 65, 61, 37, 58, 89, 145, 42, 20, 4, 16, 37, 58, 89, 145, 42, 20, 4, 16, 37, 58, 89, 145, 42, 20, 4, 16, 37, 58, 89, 145, 42, 20, 4, 16, 37, 58, 89, 145, 42, 20, 4, 16, 37, 58, 89, 145, 42, 20, 4, 16, 37, 58, 89, 145, 42, 20, 4, 16, 37, 58, 89, 145, 42, 20, 4, 16, 37, 58, 89, 145 (list; graph; listen)

	OFFSET	`1,1`
	REFERENCES	`R. Honsberger, Ingenuity in Math., Random House, 1970, p. 83.` `A. Porges, A set of eight numbers, Amer. Math. Monthly, 52 (1945), 379-382.`
	FORMULA	`Periodic with period 8.` `a(n)=A000218(n+1). - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 24 2008`
	CROSSREFS	`Adjacent sequences: A008460 A008461 A008462 this_sequence A008464 A008465 A008466` `Sequence in context: A117817 A107346 A014393 this_sequence A043087 A037414 A043180`
	KEYWORD	`nonn,base`
	AUTHOR	`njas`

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Last modified October 10 20:39 EDT 2008. Contains 144831 sequences.

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